diff --git a/src/about/AboutDialog.test.tsx b/src/about/AboutDialog.test.tsx
index 3427cf62..3be08e54 100644
--- a/src/about/AboutDialog.test.tsx
+++ b/src/about/AboutDialog.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2021-2022 The Pybricks Authors
+// Copyright (c) 2021-2023 The Pybricks Authors
 
-import { getByLabelText, waitFor } from '@testing-library/react';
+import { act, getByLabelText, waitFor } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../test';
 import AboutDialog from './AboutDialog';
@@ -11,7 +11,7 @@ it('should close when the button is clicked', async () => {
 
     const [user, dialog] = testRender(<AboutDialog isOpen={true} onClose={close} />);
 
-    await user.click(dialog.getByLabelText('Close'));
+    await act(() => user.click(dialog.getByLabelText('Close')));
 
     expect(close).toHaveBeenCalled();
 });
@@ -25,7 +25,7 @@ it('should manage license dialog open/close', async () => {
         dialog.queryByRole('dialog', { name: 'Open Source Software Licenses' }),
     ).toBeNull();
 
-    await user.click(dialog.getByText('Software Licenses'));
+    await act(() => user.click(dialog.getByText('Software Licenses')));
 
     const licenseDialog = dialog.getByRole('dialog', {
         name: 'Open Source Software Licenses',
@@ -33,7 +33,7 @@ it('should manage license dialog open/close', async () => {
 
     expect(licenseDialog).toBeVisible();
 
-    await user.click(getByLabelText(licenseDialog, 'Close'));
+    await act(() => user.click(getByLabelText(licenseDialog, 'Close')));
 
     await waitFor(() => expect(licenseDialog).not.toBeVisible());
 });
diff --git a/src/activities/Activities.test.tsx b/src/activities/Activities.test.tsx
index 0074bfe9..bc99bf5e 100644
--- a/src/activities/Activities.test.tsx
+++ b/src/activities/Activities.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../test';
 import Activities from './Activities';
@@ -48,7 +48,7 @@ describe('Activities', () => {
             );
         }
 
-        await user.click(explorerTab);
+        await act(() => user.click(explorerTab));
 
         for (const tab of activities.getAllByRole('tab')) {
             expect(tab).toHaveAttribute('aria-selected', 'false');
@@ -68,7 +68,7 @@ describe('Activities', () => {
             );
         }
 
-        await user.click(settingsTab);
+        await act(() => user.click(settingsTab));
 
         for (const tab of activities.getAllByRole('tab')) {
             expect(tab).toHaveAttribute(
diff --git a/src/alerts/UnexpectedErrorAlert.test.tsx b/src/alerts/UnexpectedErrorAlert.test.tsx
index 2ece8103..7bcbe15d 100644
--- a/src/alerts/UnexpectedErrorAlert.test.tsx
+++ b/src/alerts/UnexpectedErrorAlert.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../test';
 import { unexpectedError } from './UnexpectedErrorAlert';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/app/alerts/UpdateServerFailure.test.tsx b/src/app/alerts/UpdateServerFailure.test.tsx
index b257bfcc..d39bd947 100644
--- a/src/app/alerts/UpdateServerFailure.test.tsx
+++ b/src/app/alerts/UpdateServerFailure.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { updateServerFailure } from './UpdateServerFailure';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/ble/alerts/BluetoothNotAvailable.test.tsx b/src/ble/alerts/BluetoothNotAvailable.test.tsx
index 3130f93d..00fba949 100644
--- a/src/ble/alerts/BluetoothNotAvailable.test.tsx
+++ b/src/ble/alerts/BluetoothNotAvailable.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { bluetoothNotAvailable } from './BluetoothNotAvailable';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/ble/alerts/MissingService.test.tsx b/src/ble/alerts/MissingService.test.tsx
index 34fdc5a1..4ff34335 100644
--- a/src/ble/alerts/MissingService.test.tsx
+++ b/src/ble/alerts/MissingService.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { missingService } from './MissingService';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/ble/alerts/NoGatt.test.tsx b/src/ble/alerts/NoGatt.test.tsx
index b0a3150d..0a018e47 100644
--- a/src/ble/alerts/NoGatt.test.tsx
+++ b/src/ble/alerts/NoGatt.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { noGatt } from './NoGatt';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/ble/alerts/NoHub.test.tsx b/src/ble/alerts/NoHub.test.tsx
index a7bdb7ac..12bf04a6 100644
--- a/src/ble/alerts/NoHub.test.tsx
+++ b/src/ble/alerts/NoHub.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { noHub } from './NoHub';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
@@ -23,7 +24,7 @@ it('should flash firmware when button is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /firmware/i }));
+    await act(() => user.click(message.getByRole('button', { name: /firmware/i })));
 
     expect(callback).toHaveBeenCalledWith('flashFirmware');
 });
diff --git a/src/ble/alerts/NoWebBluetooth.test.tsx b/src/ble/alerts/NoWebBluetooth.test.tsx
index e54389f5..c63b8430 100644
--- a/src/ble/alerts/NoWebBluetooth.test.tsx
+++ b/src/ble/alerts/NoWebBluetooth.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { noWebBluetooth } from './NoWebBluetooth';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/ble/alerts/OldFimrware.test.tsx b/src/ble/alerts/OldFimrware.test.tsx
index 22d3f397..a31e0f9f 100644
--- a/src/ble/alerts/OldFimrware.test.tsx
+++ b/src/ble/alerts/OldFimrware.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { oldFirmware } from './OldFirmware';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
@@ -23,7 +24,7 @@ it('should flash firmware when button is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /firmware/i }));
+    await act(() => user.click(message.getByRole('button', { name: /firmware/i })));
 
     expect(callback).toHaveBeenCalledWith('flashFirmware');
 });
diff --git a/src/components/toolbar/Toolbar.test.tsx b/src/components/toolbar/Toolbar.test.tsx
index 8d494e63..80a1556e 100644
--- a/src/components/toolbar/Toolbar.test.tsx
+++ b/src/components/toolbar/Toolbar.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { RenderResult, cleanup } from '@testing-library/react';
+import { RenderResult, act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { Toolbar } from './Toolbar';
@@ -55,7 +55,7 @@ describe('Toolbar', () => {
         expect(button2).toHaveAttribute('tabindex', '-1');
         expect(button3).toHaveAttribute('tabindex', '-1');
 
-        await user.tab();
+        await act(() => user.tab());
 
         expect(button1).toHaveFocus();
         expect(button1).not.toHaveAttribute('tabindex');
@@ -69,7 +69,7 @@ describe('Toolbar', () => {
         const { button1, button2, button3 } = getButtons(toolbar);
 
         button1.focus();
-        await user.keyboard('{ArrowRight}');
+        await act(() => user.keyboard('{ArrowRight}'));
 
         expect(button2).toHaveFocus();
         expect(button1).toHaveAttribute('tabindex', '-1');
@@ -83,7 +83,7 @@ describe('Toolbar', () => {
         const { button1, button2, button3 } = getButtons(toolbar);
 
         button3.focus();
-        await user.keyboard('{ArrowLeft}');
+        await act(() => user.keyboard('{ArrowLeft}'));
 
         expect(button2).toHaveFocus();
         expect(button1).toHaveAttribute('tabindex', '-1');
@@ -97,7 +97,7 @@ describe('Toolbar', () => {
         const { button1, button2, button3 } = getButtons(toolbar);
 
         button3.focus();
-        await user.keyboard('{ArrowRight}');
+        await act(() => user.keyboard('{ArrowRight}'));
 
         expect(button1).toHaveFocus();
         expect(button1).not.toHaveAttribute('tabindex');
@@ -111,7 +111,7 @@ describe('Toolbar', () => {
         const { button1, button2, button3 } = getButtons(toolbar);
 
         button1.focus();
-        await user.keyboard('{ArrowLeft}');
+        await act(() => user.keyboard('{ArrowLeft}'));
 
         expect(button3).toHaveFocus();
         expect(button1).toHaveAttribute('tabindex', '-1');
@@ -125,7 +125,7 @@ describe('Toolbar', () => {
         const { button1, button2, button3 } = getButtons(toolbar);
 
         button3.focus();
-        await user.keyboard('{Home}');
+        await act(() => user.keyboard('{Home}'));
 
         expect(button1).toHaveFocus();
         expect(button1).not.toHaveAttribute('tabindex');
@@ -139,7 +139,7 @@ describe('Toolbar', () => {
         const { button1, button2, button3 } = getButtons(toolbar);
 
         button1.focus();
-        await user.keyboard('{End}');
+        await act(() => user.keyboard('{End}'));
 
         expect(button3).toHaveFocus();
         expect(button1).toHaveAttribute('tabindex', '-1');
@@ -153,7 +153,7 @@ describe('Toolbar', () => {
         const { button1, button2, button3 } = getButtons(toolbar);
 
         button2.focus();
-        await user.keyboard('{ArrowUp}');
+        await act(() => user.keyboard('{ArrowUp}'));
 
         expect(button2).toHaveFocus();
         expect(button1).toHaveAttribute('tabindex', '-1');
@@ -167,7 +167,7 @@ describe('Toolbar', () => {
         const { button1, button2, button3 } = getButtons(toolbar);
 
         button2.focus();
-        await user.keyboard('{ArrowDown}');
+        await act(() => user.keyboard('{ArrowDown}'));
 
         expect(button2).toHaveFocus();
         expect(button1).toHaveAttribute('tabindex', '-1');
@@ -181,7 +181,7 @@ describe('Toolbar', () => {
         const { button1, button2, button3 } = getButtons(toolbar);
 
         button2.focus();
-        await user.tab();
+        await act(() => user.tab());
 
         expect(document.body).toHaveFocus();
         expect(button1).toHaveAttribute('tabindex', '-1');
@@ -194,7 +194,7 @@ describe('Toolbar', () => {
 
         const { button1, button2, button3 } = getButtons(toolbar);
 
-        await user.click(button2);
+        await act(() => user.click(button2));
 
         expect(button2).toHaveFocus();
         expect(button1).toHaveAttribute('tabindex', '-1');
diff --git a/src/editor/Editor.test.tsx b/src/editor/Editor.test.tsx
index ddaa9389..7d9a4a1c 100644
--- a/src/editor/Editor.test.tsx
+++ b/src/editor/Editor.test.tsx
@@ -2,7 +2,7 @@
 // Copyright (c) 2021-2023 The Pybricks Authors
 
 import { Classes } from '@blueprintjs/core';
-import { cleanup, fireEvent, waitFor } from '@testing-library/react';
+import { act, cleanup, fireEvent, waitFor } from '@testing-library/react';
 import * as monaco from 'monaco-editor';
 import React from 'react';
 import { testRender, uuid } from '../../test';
@@ -41,7 +41,7 @@ describe('Editor', () => {
                 editor: { openFileUuids: [testFile.uuid] },
             });
 
-            await user.click(editor.getByRole('tab', { name: 'test.file' }));
+            await act(() => user.click(editor.getByRole('tab', { name: 'test.file' })));
 
             expect(dispatch).toHaveBeenCalledWith(editorActivateFile(testFile.uuid));
         });
@@ -56,7 +56,9 @@ describe('Editor', () => {
                     editor: { openFileUuids: [testFile.uuid] },
                 });
 
-                await user.type(editor.getByRole('tab', { name: 'test.file' }), key);
+                await act(() =>
+                    user.type(editor.getByRole('tab', { name: 'test.file' }), key),
+                );
 
                 expect(dispatch).toHaveBeenCalledWith(
                     editorActivateFile(testFile.uuid),
@@ -72,7 +74,9 @@ describe('Editor', () => {
                 editor: { openFileUuids: [testFile.uuid] },
             });
 
-            await user.click(editor.getByRole('button', { name: 'Close test.file' }));
+            await act(() =>
+                user.click(editor.getByRole('button', { name: 'Close test.file' })),
+            );
 
             expect(dispatch).toHaveBeenCalledWith(editorCloseFile(testFile.uuid));
         });
@@ -85,7 +89,9 @@ describe('Editor', () => {
                 editor: { openFileUuids: [testFile.uuid] },
             });
 
-            await user.type(editor.getByRole('tab', { name: 'test.file' }), '{Delete}');
+            await act(() =>
+                user.type(editor.getByRole('tab', { name: 'test.file' }), '{Delete}'),
+            );
 
             expect(dispatch).toHaveBeenCalledWith(editorCloseFile(testFile.uuid));
         });
@@ -98,10 +104,12 @@ describe('Editor', () => {
                 editor: { openFileUuids: [testFile.uuid] },
             });
 
-            await user.pointer({
-                keys: '[MouseMiddle]',
-                target: editor.getByRole('tab', { name: 'test.file' }),
-            });
+            await act(() =>
+                user.pointer({
+                    keys: '[MouseMiddle]',
+                    target: editor.getByRole('tab', { name: 'test.file' }),
+                }),
+            );
 
             expect(dispatch).toHaveBeenCalledWith(editorCloseFile(testFile.uuid));
         });
@@ -145,7 +153,7 @@ describe('Editor', () => {
                 expect(editor.getByRole('menuitem', { name: 'Copy' })).toHaveFocus(),
             );
 
-            await user.keyboard('{Escape}');
+            await act(() => user.keyboard('{Escape}'));
 
             await waitFor(() => expect(contextMenu).not.toBeInTheDocument());
 
@@ -169,10 +177,12 @@ describe('Editor', () => {
                 editor.queryByRole('menu', { name: 'Editor context menu' }),
             ).toBeNull();
 
-            await user.pointer({
-                keys: '[MouseRight]',
-                target: editor.getByRole('textbox', { name: /^Editor content/ }),
-            });
+            await act(() =>
+                user.pointer({
+                    keys: '[MouseRight]',
+                    target: editor.getByRole('textbox', { name: /^Editor content/ }),
+                }),
+            );
 
             const contextMenu = await editor.findByRole('menu', {
                 name: 'Editor context menu',
@@ -190,7 +200,7 @@ describe('Editor', () => {
 
             defined(overlay);
 
-            await user.click(overlay);
+            await act(() => user.click(overlay));
 
             await waitFor(() => expect(contextMenu).not.toBeInTheDocument());
 
diff --git a/src/explorer/Explorer.test.tsx b/src/explorer/Explorer.test.tsx
index 4e57422a..9bb05aa1 100644
--- a/src/explorer/Explorer.test.tsx
+++ b/src/explorer/Explorer.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup, waitFor } from '@testing-library/react';
+import { act, cleanup, waitFor } from '@testing-library/react';
 import React from 'react';
 import { testRender, uuid } from '../../test';
 import { FileMetadata } from '../fileStorage';
@@ -39,7 +39,7 @@ describe('archive button', () => {
         const button = explorer.getByTitle('Backup all files');
         expect(button).toBeEnabled();
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(explorerArchiveAllFiles());
     });
 });
@@ -50,7 +50,7 @@ describe('import file button', () => {
 
         const button = explorer.getByTitle('Import a file');
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(explorerImportFiles());
     });
 });
@@ -61,7 +61,7 @@ describe('new file button', () => {
 
         const button = explorer.getByTitle('Create a new file');
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(explorerCreateNewFile());
     });
 });
@@ -73,7 +73,7 @@ describe('tree item', () => {
 
         const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
 
-        await user.click(treeItem);
+        await act(() => user.click(treeItem));
 
         expect(dispatch).toHaveBeenCalledWith(
             explorerUserActivateFile('test.file', uuid(0)),
@@ -86,8 +86,8 @@ describe('tree item', () => {
 
         const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
 
-        await user.click(treeItem);
-        await user.keyboard('{Enter}');
+        await act(() => user.click(treeItem));
+        await act(() => user.keyboard('{Enter}'));
 
         expect(dispatch).toHaveBeenCalledWith(
             explorerUserActivateFile('test.file', uuid(0)),
@@ -100,14 +100,14 @@ describe('tree item', () => {
             const [user, explorer, dispatch] = testRender(<Explorer />);
 
             const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
-            await user.hover(treeItem);
+            await act(() => user.hover(treeItem));
 
             const button = await waitFor(() =>
                 explorer.getByRole('button', { name: 'Duplicate test.file' }),
             );
 
             // user.click() has bad interaction with hover so we use user.pointer() instead
-            await user.pointer({ keys: '[MouseLeft]', target: button });
+            await act(() => user.pointer({ keys: '[MouseLeft]', target: button }));
 
             expect(dispatch).toHaveBeenCalledWith(explorerDuplicateFile('test.file'));
 
@@ -121,8 +121,8 @@ describe('tree item', () => {
 
             const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
 
-            await user.click(treeItem);
-            await user.keyboard('{Control>}d{/Control}');
+            await act(() => user.click(treeItem));
+            await act(() => user.keyboard('{Control>}d{/Control}'));
 
             expect(dispatch).toHaveBeenCalledWith(explorerDuplicateFile('test.file'));
         });
@@ -134,14 +134,14 @@ describe('tree item', () => {
             const [user, explorer, dispatch] = testRender(<Explorer />);
 
             const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
-            await user.hover(treeItem);
+            await act(() => user.hover(treeItem));
 
             const button = await waitFor(() =>
                 explorer.getByRole('button', { name: 'Rename test.file' }),
             );
 
             // user.click() has bad interaction with hover so we use user.pointer() instead
-            await user.pointer({ keys: '[MouseLeft]', target: button });
+            await act(() => user.pointer({ keys: '[MouseLeft]', target: button }));
 
             expect(dispatch).toHaveBeenCalledWith(explorerRenameFile('test.file'));
 
@@ -155,8 +155,8 @@ describe('tree item', () => {
 
             const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
 
-            await user.click(treeItem);
-            await user.keyboard('{F2}');
+            await act(() => user.click(treeItem));
+            await act(() => user.keyboard('{F2}'));
 
             expect(dispatch).toHaveBeenCalledWith(explorerRenameFile('test.file'));
         });
@@ -168,14 +168,14 @@ describe('tree item', () => {
             const [user, explorer, dispatch] = testRender(<Explorer />);
 
             const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
-            await user.hover(treeItem);
+            await act(() => user.hover(treeItem));
 
             const button = await waitFor(() =>
                 explorer.getByRole('button', { name: 'Export test.file' }),
             );
 
             // user.click() has bad interaction with hover so we use user.pointer() instead
-            await user.pointer({ keys: '[MouseLeft]', target: button });
+            await act(() => user.pointer({ keys: '[MouseLeft]', target: button }));
 
             expect(dispatch).toHaveBeenCalledWith(explorerExportFile('test.file'));
 
@@ -189,8 +189,8 @@ describe('tree item', () => {
 
             const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
 
-            await user.click(treeItem);
-            await user.keyboard('{Control>}e{/Control}');
+            await act(() => user.click(treeItem));
+            await act(() => user.keyboard('{Control>}e{/Control}'));
 
             expect(dispatch).toHaveBeenCalledWith(explorerExportFile('test.file'));
         });
@@ -202,14 +202,14 @@ describe('tree item', () => {
             const [user, explorer, dispatch] = testRender(<Explorer />);
 
             const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
-            await user.hover(treeItem);
+            await act(() => user.hover(treeItem));
 
             const button = await waitFor(() =>
                 explorer.getByRole('button', { name: 'Delete test.file' }),
             );
 
             // user.click() has bad interaction with hover so we use user.pointer() instead
-            await user.pointer({ keys: '[MouseLeft]', target: button });
+            await act(() => user.pointer({ keys: '[MouseLeft]', target: button }));
 
             expect(dispatch).toHaveBeenCalledWith(
                 explorerDeleteFile('test.file', uuid(0)),
@@ -225,8 +225,8 @@ describe('tree item', () => {
 
             const treeItem = explorer.getByRole('treeitem', { name: 'test.file' });
 
-            await user.click(treeItem);
-            await user.keyboard('{Delete}');
+            await act(() => user.click(treeItem));
+            await act(() => user.keyboard('{Delete}'));
 
             expect(dispatch).toHaveBeenCalledWith(
                 explorerDeleteFile('test.file', uuid(0)),
diff --git a/src/explorer/alerts/FileInUseAlert.test.tsx b/src/explorer/alerts/FileInUseAlert.test.tsx
index 6251b2cc..04ecb1cc 100644
--- a/src/explorer/alerts/FileInUseAlert.test.tsx
+++ b/src/explorer/alerts/FileInUseAlert.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { fileInUse } from './FileInUseAlert';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/explorer/alerts/NoFilesToBackup.test.tsx b/src/explorer/alerts/NoFilesToBackup.test.tsx
index 6d40367f..814a3238 100644
--- a/src/explorer/alerts/NoFilesToBackup.test.tsx
+++ b/src/explorer/alerts/NoFilesToBackup.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { noFilesToBackup } from './NoFilesToBackup';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/explorer/alerts/NoPyFiles.test.tsx b/src/explorer/alerts/NoPyFiles.test.tsx
index 30c13253..fc806862 100644
--- a/src/explorer/alerts/NoPyFiles.test.tsx
+++ b/src/explorer/alerts/NoPyFiles.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { noPyFiles } from './NoPyFiles';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/explorer/deleteFileAlert/DeleteFileAlert.test.tsx b/src/explorer/deleteFileAlert/DeleteFileAlert.test.tsx
index 2cf0c93e..01b9f84f 100644
--- a/src/explorer/deleteFileAlert/DeleteFileAlert.test.tsx
+++ b/src/explorer/deleteFileAlert/DeleteFileAlert.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup, waitFor } from '@testing-library/react';
+import { act, cleanup, waitFor } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import DeleteFileAlert from './DeleteFileAlert';
@@ -17,7 +17,7 @@ describe('accept', () => {
             explorer: { deleteFileAlert: { fileName: 'test.file', isOpen: true } },
         });
 
-        await user.click(dialog.getByRole('button', { name: 'Delete' }));
+        await act(() => user.click(dialog.getByRole('button', { name: 'Delete' })));
         expect(dispatch).toHaveBeenCalledWith(deleteFileAlertDidAccept());
     });
 
@@ -29,7 +29,7 @@ describe('accept', () => {
         await waitFor(() =>
             expect(dialog.getByRole('button', { name: 'Delete' })).toHaveFocus(),
         );
-        await user.keyboard('{Enter}');
+        await act(() => user.keyboard('{Enter}'));
 
         expect(dispatch).toHaveBeenCalledWith(deleteFileAlertDidAccept());
     });
@@ -41,7 +41,7 @@ describe('cancel', () => {
             explorer: { deleteFileAlert: { fileName: 'test.file', isOpen: true } },
         });
 
-        await user.click(dialog.getByRole('button', { name: 'Keep' }));
+        await act(() => user.click(dialog.getByRole('button', { name: 'Keep' })));
 
         expect(dispatch).toHaveBeenCalledWith(deleteFileAlertDidCancel());
     });
@@ -55,7 +55,7 @@ describe('cancel', () => {
             expect(dialog.getByRole('button', { name: 'Delete' })).toHaveFocus(),
         );
 
-        await user.keyboard('{Escape}');
+        await act(() => user.keyboard('{Escape}'));
 
         expect(dispatch).toHaveBeenCalledWith(deleteFileAlertDidCancel());
     });
diff --git a/src/explorer/duplicateFileDialog/DuplicateFileDialog.test.tsx b/src/explorer/duplicateFileDialog/DuplicateFileDialog.test.tsx
index 5969fcdb..3f856457 100644
--- a/src/explorer/duplicateFileDialog/DuplicateFileDialog.test.tsx
+++ b/src/explorer/duplicateFileDialog/DuplicateFileDialog.test.tsx
@@ -1,7 +1,8 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
 import { waitFor } from '@testing-library/dom';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import DuplicateFileDialog from './DuplicateFileDialog';
@@ -20,10 +21,10 @@ describe('duplicate button', () => {
         // have to type a new file name before Duplicate button is enabled
         const input = dialog.getByRole('textbox', { name: 'File name' });
         await waitFor(() => expect(input).toHaveFocus());
-        await user.type(input, 'new', { skipClick: true });
+        await act(() => user.type(input, 'new', { skipClick: true }));
         await waitFor(() => expect(button).not.toBeDisabled());
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(
             duplicateFileDialogDidAccept('source.file', 'new.file'),
         );
@@ -39,7 +40,7 @@ describe('duplicate button', () => {
         // have to type a new file name before Duplicate button is enabled
         const input = dialog.getByRole('textbox', { name: 'File name' });
         await waitFor(() => expect(input).toHaveFocus());
-        await user.type(input, 'new{Enter}', { skipClick: true });
+        await act(() => user.type(input, 'new{Enter}', { skipClick: true }));
 
         expect(dispatch).toHaveBeenCalledWith(
             duplicateFileDialogDidAccept('source.file', 'new.file'),
@@ -57,7 +58,7 @@ describe('duplicate button', () => {
 
         await waitFor(() => expect(button).toBeVisible());
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(duplicateFileDialogDidCancel());
     });
 
@@ -72,7 +73,7 @@ describe('duplicate button', () => {
             expect(dialog.getByRole('textbox', { name: 'File name' })).toHaveFocus(),
         );
 
-        await user.keyboard('{Escape}');
+        await act(() => user.keyboard('{Escape}'));
 
         expect(dispatch).toHaveBeenCalledWith(duplicateFileDialogDidCancel());
     });
diff --git a/src/explorer/fileNameFormGroup/FileNameFormGroup.test.tsx b/src/explorer/fileNameFormGroup/FileNameFormGroup.test.tsx
index 36bdd750..8221333b 100644
--- a/src/explorer/fileNameFormGroup/FileNameFormGroup.test.tsx
+++ b/src/explorer/fileNameFormGroup/FileNameFormGroup.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
 // Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { FileNameValidationResult } from '../../pybricksMicropython/lib';
@@ -40,7 +40,7 @@ it('should fix file names with spaces', async () => {
         />,
     );
 
-    await user.click(group.getByRole('button', { name: /fix it/i }));
+    await act(() => user.click(group.getByRole('button', { name: /fix it/i })));
 
     expect(callback).toHaveBeenCalledWith('test_name');
 });
@@ -57,7 +57,7 @@ it('should fix file names with file extension', async () => {
         />,
     );
 
-    await user.click(group.getByRole('button', { name: /fix it/i }));
+    await act(() => user.click(group.getByRole('button', { name: /fix it/i })));
 
     expect(callback).toHaveBeenCalledWith('test');
 });
@@ -74,7 +74,7 @@ it('should fix file names with invalid characters', async () => {
         />,
     );
 
-    await user.click(group.getByRole('button', { name: /fix it/i }));
+    await act(() => user.click(group.getByRole('button', { name: /fix it/i })));
 
     expect(callback).toHaveBeenCalledWith('test_name');
 });
diff --git a/src/explorer/newFileWizard/NewFileWizard.test.tsx b/src/explorer/newFileWizard/NewFileWizard.test.tsx
index c083d731..9351265b 100644
--- a/src/explorer/newFileWizard/NewFileWizard.test.tsx
+++ b/src/explorer/newFileWizard/NewFileWizard.test.tsx
@@ -1,8 +1,8 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
 import { waitFor } from '@testing-library/dom';
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { Hub } from '../../components/hubPicker';
@@ -22,10 +22,12 @@ describe('accept', () => {
         const button = dialog.getByLabelText('Create');
 
         // have to type a file name before Create button is enabled
-        await user.type(dialog.getByRole('textbox', { name: 'File name' }), 'test');
+        await act(() =>
+            user.type(dialog.getByRole('textbox', { name: 'File name' }), 'test'),
+        );
         await waitFor(() => expect(button).not.toBeDisabled());
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(
             newFileWizardDidAccept('test', '.py', Hub.Move),
         );
@@ -36,9 +38,11 @@ describe('accept', () => {
             explorer: { newFileWizard: { isOpen: true } },
         });
 
-        await user.type(
-            dialog.getByRole('textbox', { name: 'File name' }),
-            'test{Enter}',
+        await act(() =>
+            user.type(
+                dialog.getByRole('textbox', { name: 'File name' }),
+                'test{Enter}',
+            ),
         );
 
         expect(dispatch).toHaveBeenCalledWith(
@@ -53,7 +57,7 @@ describe('cancel', () => {
             explorer: { newFileWizard: { isOpen: true } },
         });
 
-        await user.click(dialog.getByRole('button', { name: 'Close' }));
+        await act(() => user.click(dialog.getByRole('button', { name: 'Close' })));
 
         expect(dispatch).toHaveBeenCalledWith(newFileWizardDidCancel());
     });
@@ -67,7 +71,7 @@ describe('cancel', () => {
             expect(dialog.getByRole('textbox', { name: 'File name' })).toHaveFocus(),
         );
 
-        await user.keyboard('{Escape}');
+        await act(() => user.keyboard('{Escape}'));
 
         expect(dispatch).toHaveBeenCalledWith(newFileWizardDidCancel());
     });
diff --git a/src/explorer/renameFileDialog/RenameFileDialog.test.tsx b/src/explorer/renameFileDialog/RenameFileDialog.test.tsx
index 91b600b1..3ae251a4 100644
--- a/src/explorer/renameFileDialog/RenameFileDialog.test.tsx
+++ b/src/explorer/renameFileDialog/RenameFileDialog.test.tsx
@@ -1,7 +1,8 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
 import { waitFor } from '@testing-library/dom';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import RenameFileDialog from './RenameFileDialog';
@@ -18,10 +19,10 @@ describe('rename button', () => {
         // have to type a new file name before Rename button is enabled
         const input = dialog.getByLabelText('File name');
         await waitFor(() => expect(input).toHaveFocus());
-        await user.type(input, 'new', { skipClick: true });
+        await act(() => user.type(input, 'new', { skipClick: true }));
         await waitFor(() => expect(button).not.toBeDisabled());
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(
             renameFileDialogDidAccept('old.file', 'new.file'),
         );
@@ -35,7 +36,7 @@ describe('rename button', () => {
         // have to type a new file name before Rename button is enabled
         const input = dialog.getByLabelText('File name');
         await waitFor(() => expect(input).toHaveFocus());
-        await user.type(input, 'new{Enter}', { skipClick: true });
+        await act(() => user.type(input, 'new{Enter}', { skipClick: true }));
 
         expect(dispatch).toHaveBeenCalledWith(
             renameFileDialogDidAccept('old.file', 'new.file'),
@@ -51,7 +52,7 @@ describe('rename button', () => {
 
         await waitFor(() => expect(button).toBeVisible());
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(renameFileDialogDidCancel());
     });
 });
diff --git a/src/explorer/renameImportDialog/RenameImportDialog.test.tsx b/src/explorer/renameImportDialog/RenameImportDialog.test.tsx
index 08712c4e..b8f8b442 100644
--- a/src/explorer/renameImportDialog/RenameImportDialog.test.tsx
+++ b/src/explorer/renameImportDialog/RenameImportDialog.test.tsx
@@ -1,7 +1,8 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
 import { waitFor } from '@testing-library/dom';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import RenameImportDialog from './RenameImportDialog';
@@ -18,10 +19,10 @@ describe('rename button', () => {
         // have to type a new file name before Rename button is enabled
         const input = dialog.getByLabelText('File name');
         await waitFor(() => expect(input).toHaveFocus());
-        await user.type(input, 'new', { skipClick: true });
+        await act(() => user.type(input, 'new', { skipClick: true }));
         await waitFor(() => expect(button).not.toBeDisabled());
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(
             renameImportDialogDidAccept('old.file', 'new.file'),
         );
@@ -35,7 +36,7 @@ describe('rename button', () => {
         // have to type a new file name before Rename button is enabled
         const input = dialog.getByLabelText('File name');
         await waitFor(() => expect(input).toHaveFocus());
-        await user.type(input, 'new{Enter}', { skipClick: true });
+        await act(() => user.type(input, 'new{Enter}', { skipClick: true }));
 
         expect(dispatch).toHaveBeenCalledWith(
             renameImportDialogDidAccept('old.file', 'new.file'),
@@ -51,7 +52,7 @@ describe('rename button', () => {
 
         await waitFor(() => expect(button).toBeVisible());
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(renameImportDialogDidCancel());
     });
 
@@ -64,7 +65,7 @@ describe('rename button', () => {
 
         await waitFor(() => expect(button).toBeVisible());
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(renameImportDialogDidCancel());
     });
 });
diff --git a/src/explorer/replaceImportDialog/ReplaceImportDialog.test.tsx b/src/explorer/replaceImportDialog/ReplaceImportDialog.test.tsx
index bfadff6a..7282389d 100644
--- a/src/explorer/replaceImportDialog/ReplaceImportDialog.test.tsx
+++ b/src/explorer/replaceImportDialog/ReplaceImportDialog.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { waitFor } from '@testing-library/dom';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import RenameImportDialog from './ReplaceImportDialog';
@@ -32,11 +33,11 @@ describe('replace button', () => {
                 const rememberCheckBox = dialog.getByRole('checkbox', {
                     name: /remember/i,
                 });
-                await user.click(rememberCheckBox);
+                await act(() => user.click(rememberCheckBox));
             }
 
             const button = dialog.getByRole('button', { name: buttonName });
-            await user.click(button);
+            await act(() => user.click(button));
 
             expect(dispatch).toHaveBeenCalledWith(
                 replaceImportDialogDidAccept(action, remember),
@@ -53,7 +54,7 @@ describe('replace button', () => {
 
         await waitFor(() => expect(button).toBeVisible());
 
-        await user.click(button);
+        await act(() => user.click(button));
         expect(dispatch).toHaveBeenCalledWith(replaceImportDialogDidCancel());
     });
 });
diff --git a/src/firmware/alerts/DfuError.test.tsx b/src/firmware/alerts/DfuError.test.tsx
index 791c355f..71e67863 100644
--- a/src/firmware/alerts/DfuError.test.tsx
+++ b/src/firmware/alerts/DfuError.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { dfuError } from './DfuError';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
@@ -23,7 +24,7 @@ it('should try again when clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /again/i }));
+    await act(() => user.click(message.getByRole('button', { name: /again/i })));
 
     expect(callback).toHaveBeenCalledWith('tryAgain');
 });
diff --git a/src/firmware/alerts/FlashProgress.test.tsx b/src/firmware/alerts/FlashProgress.test.tsx
index 26e64b69..a902dcd5 100644
--- a/src/firmware/alerts/FlashProgress.test.tsx
+++ b/src/firmware/alerts/FlashProgress.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { flashProgress } from './FlashProgress';
@@ -16,7 +17,7 @@ it.each(['erase' as ActionType, 'flash' as ActionType])(
 
         const [user, message] = testRender(<Toast {...toast} />);
 
-        await user.click(message.getByRole('button', { name: /close/i }));
+        await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
         expect(callback).toHaveBeenCalledWith('dismiss');
     },
diff --git a/src/firmware/alerts/NoDfuHub.test.tsx b/src/firmware/alerts/NoDfuHub.test.tsx
index d6bb2ea3..311f8697 100644
--- a/src/firmware/alerts/NoDfuHub.test.tsx
+++ b/src/firmware/alerts/NoDfuHub.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { isLinux, isWindows } from '../../utils/os';
@@ -19,7 +20,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
@@ -33,7 +34,7 @@ it('should install windows driver when clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /driver/i }));
+    await act(() => user.click(message.getByRole('button', { name: /driver/i })));
 
     expect(callback).toHaveBeenCalledWith('installWindowsDriver');
 });
diff --git a/src/firmware/alerts/NoDfuInterface.test.tsx b/src/firmware/alerts/NoDfuInterface.test.tsx
index 3955bd0e..97f1c15c 100644
--- a/src/firmware/alerts/NoDfuInterface.test.tsx
+++ b/src/firmware/alerts/NoDfuInterface.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { noDfuInterface } from './NoDfuInterface';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/firmware/alerts/NoWebUsb.test.tsx b/src/firmware/alerts/NoWebUsb.test.tsx
index 315137ea..3895f016 100644
--- a/src/firmware/alerts/NoWebUsb.test.tsx
+++ b/src/firmware/alerts/NoWebUsb.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { noWebUsb } from './NoWebUsb';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/firmware/alerts/ReleaseButton.test.tsx b/src/firmware/alerts/ReleaseButton.test.tsx
index 81cb1f66..7a9426f7 100644
--- a/src/firmware/alerts/ReleaseButton.test.tsx
+++ b/src/firmware/alerts/ReleaseButton.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { releaseButton } from './ReleaseButton';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/firmware/dfuWindowsDriverInstallDialog/DfuWindowsDriverInstallDialog.test.tsx b/src/firmware/dfuWindowsDriverInstallDialog/DfuWindowsDriverInstallDialog.test.tsx
index 15497309..d703d6d9 100644
--- a/src/firmware/dfuWindowsDriverInstallDialog/DfuWindowsDriverInstallDialog.test.tsx
+++ b/src/firmware/dfuWindowsDriverInstallDialog/DfuWindowsDriverInstallDialog.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import DfuWindowsDriverInstallDialog from './DfuWindowsDriverInstallDialog';
@@ -19,7 +19,7 @@ it('should dispatch action when the close button is pressed', async () => {
         firmware: { dfuWindowsDriverInstallDialog: { isOpen: true } },
     });
 
-    await user.click(dialog.getByRole('button', { name: 'Close' }));
+    await act(() => user.click(dialog.getByRole('button', { name: 'Close' })));
 
     expect(dispatch).toHaveBeenCalledWith(
         firmwareDfuWindowsDriverInstallDialogDialogHide(),
@@ -32,10 +32,10 @@ it('should navigate when next button is pressed and dispatch action when the don
     });
 
     for (let i = 1; i < 9; i++) {
-        await user.click(dialog.getByRole('button', { name: 'Next' }));
+        await act(() => user.click(dialog.getByRole('button', { name: 'Next' })));
     }
 
-    await user.click(dialog.getByRole('button', { name: 'Done' }));
+    await act(() => user.click(dialog.getByRole('button', { name: 'Done' })));
 
     expect(dispatch).toHaveBeenCalledWith(
         firmwareDfuWindowsDriverInstallDialogDialogHide(),
diff --git a/src/firmware/installPybricksDialog/InstallPybricksDialog.test.tsx b/src/firmware/installPybricksDialog/InstallPybricksDialog.test.tsx
index fc5083b6..89454ee8 100644
--- a/src/firmware/installPybricksDialog/InstallPybricksDialog.test.tsx
+++ b/src/firmware/installPybricksDialog/InstallPybricksDialog.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
 // Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { InstallPybricksDialog } from './InstallPybricksDialog';
@@ -24,7 +24,7 @@ it('should dispatch when close is clicked', async () => {
         firmware: { installPybricksDialog: { isOpen: true } },
     });
 
-    await user.click(dialog.getByRole('button', { name: /close/i }));
+    await act(() => user.click(dialog.getByRole('button', { name: /close/i })));
 
     expect(dispatch).toHaveBeenCalledWith(firmwareInstallPybricksDialogCancel());
 });
@@ -35,17 +35,17 @@ it('should dispatch when done is clicked', async () => {
     });
 
     // first page - select hub
-    await user.click(dialog.getByRole('button', { name: /next/i }));
+    await act(() => user.click(dialog.getByRole('button', { name: /next/i })));
 
     // second page - accept license
-    await user.click(dialog.getByRole('checkbox', { name: /agree/i }));
-    await user.click(dialog.getByRole('button', { name: /next/i }));
+    await act(() => user.click(dialog.getByRole('checkbox', { name: /agree/i })));
+    await act(() => user.click(dialog.getByRole('button', { name: /next/i })));
 
     // third page - options
-    await user.click(dialog.getByRole('button', { name: /next/i }));
+    await act(() => user.click(dialog.getByRole('button', { name: /next/i })));
 
     // last page
-    await user.click(dialog.getByRole('button', { name: /install/i }));
+    await act(() => user.click(dialog.getByRole('button', { name: /install/i })));
 
     expect(dispatch).toHaveBeenCalledWith(
         firmwareInstallPybricksDialogAccept(
diff --git a/src/firmware/restoreOfficialDialog/RestoreOfficialDialog.test.tsx b/src/firmware/restoreOfficialDialog/RestoreOfficialDialog.test.tsx
index d0d789f0..b296944d 100644
--- a/src/firmware/restoreOfficialDialog/RestoreOfficialDialog.test.tsx
+++ b/src/firmware/restoreOfficialDialog/RestoreOfficialDialog.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { Hub } from '../../components/hubPicker';
@@ -21,7 +21,7 @@ describe('closing', () => {
             firmware: { restoreOfficialDialog: { isOpen: true } },
         });
 
-        await user.click(dialog.getByRole('button', { name: 'Close' }));
+        await act(() => user.click(dialog.getByRole('button', { name: 'Close' })));
 
         expect(dispatch).toHaveBeenCalledWith(firmwareRestoreOfficialDialogHide());
     });
@@ -31,8 +31,8 @@ describe('closing', () => {
             firmware: { restoreOfficialDialog: { isOpen: true } },
         });
 
-        await user.click(dialog.getByRole('button', { name: 'Next' }));
-        await user.click(dialog.getByRole('button', { name: 'Done' }));
+        await act(() => user.click(dialog.getByRole('button', { name: 'Next' })));
+        await act(() => user.click(dialog.getByRole('button', { name: 'Done' })));
 
         expect(dispatch).toHaveBeenCalledWith(firmwareRestoreOfficialDialogHide());
     });
@@ -50,9 +50,11 @@ describe('flashing', () => {
                 firmware: { restoreOfficialDialog: { isOpen: true } },
             });
 
-            await user.click(dialog.getByRole('radio', { name: hubName }));
-            await user.click(dialog.getByRole('button', { name: 'Next' }));
-            await user.click(dialog.getByRole('button', { name: 'Restore' }));
+            await act(() => user.click(dialog.getByRole('radio', { name: hubName })));
+            await act(() => user.click(dialog.getByRole('button', { name: 'Next' })));
+            await act(() =>
+                user.click(dialog.getByRole('button', { name: 'Restore' })),
+            );
 
             expect(dispatch).toHaveBeenCalledWith(firmwareRestoreOfficialDfu(hub));
         },
diff --git a/src/hub/alerts/UserProgramSize.test.tsx b/src/hub/alerts/UserProgramSize.test.tsx
index d435cdd7..edaa4f2e 100644
--- a/src/hub/alerts/UserProgramSize.test.tsx
+++ b/src/hub/alerts/UserProgramSize.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { userProgramSize } from './UserProgramSize';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/licenses/LicenseDialog.test.tsx b/src/licenses/LicenseDialog.test.tsx
index 02bec541..7fafee58 100644
--- a/src/licenses/LicenseDialog.test.tsx
+++ b/src/licenses/LicenseDialog.test.tsx
@@ -1,8 +1,8 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Classes } from '@blueprintjs/core';
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../test';
 import LicenseDialog from './LicenseDialog';
@@ -50,7 +50,7 @@ describe('LicenseDialog', () => {
         expect(dialog.queryByText('Joe Somebody')).toBeNull();
 
         // then when you click on a license name, the license is shown
-        await user.click(treeNode);
+        await act(() => user.click(treeNode));
         expect(dialog.getByText('Joe Somebody')).toBeDefined();
     });
 });
diff --git a/src/mpy/alerts/CompileError.test.tsx b/src/mpy/alerts/CompileError.test.tsx
index e4adb03f..eea8dd3c 100644
--- a/src/mpy/alerts/CompileError.test.tsx
+++ b/src/mpy/alerts/CompileError.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender, uuid } from '../../../test';
 import { editorGoto } from '../../editor/actions';
@@ -18,7 +19,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
@@ -33,7 +34,7 @@ it('should dispatch go to error when clicked', async () => {
 
     const [user, message, dispatch] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /go to/i }));
+    await act(() => user.click(message.getByRole('button', { name: /go to/i })));
 
     expect(dispatch).toHaveBeenCalledWith(editorGoto(uuid(0), 1));
 });
diff --git a/src/settings/Settings.test.tsx b/src/settings/Settings.test.tsx
index 22b4c62c..a50a27aa 100644
--- a/src/settings/Settings.test.tsx
+++ b/src/settings/Settings.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup, getByLabelText, waitFor } from '@testing-library/react';
+import { act, cleanup, getByLabelText, waitFor } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../test';
 import { firmwareInstallPybricks } from '../firmware/actions';
@@ -23,11 +23,11 @@ describe('darkMode setting switch', () => {
         expect(darkMode).not.toBeChecked();
         expect(localStorage.getItem('usehooks-ts-ternary-dark-mode')).toBe(null);
 
-        await user.click(darkMode);
+        await act(() => user.click(darkMode));
         expect(darkMode).toBeChecked();
         expect(localStorage.getItem('usehooks-ts-ternary-dark-mode')).toBe('"dark"');
 
-        await user.click(darkMode);
+        await act(() => user.click(darkMode));
         expect(darkMode).not.toBeChecked();
         expect(localStorage.getItem('usehooks-ts-ternary-dark-mode')).toBe('"light"');
     });
@@ -40,7 +40,7 @@ describe('firmware', () => {
         const button = settings.getByRole('button', {
             name: 'Install Pybricks Firmware',
         });
-        await user.click(button);
+        await act(() => user.click(button));
 
         expect(dispatch).toHaveBeenCalledWith(firmwareInstallPybricks());
     });
@@ -51,7 +51,7 @@ describe('firmware', () => {
         const button = settings.getByRole('button', {
             name: 'Restore Official LEGO® Firmware',
         });
-        await user.click(button);
+        await act(() => user.click(button));
 
         expect(dispatch).toHaveBeenCalledWith(firmwareRestoreOfficialDialogShow());
     });
@@ -65,13 +65,13 @@ describe('about dialog', () => {
 
         expect(settings.queryByRole('dialog', { name: `About ${appName}` })).toBeNull();
 
-        await user.click(settings.getByText('About'));
+        await act(() => user.click(settings.getByText('About')));
 
         const dialog = settings.getByRole('dialog', { name: `About ${appName}` });
 
         expect(dialog).toBeVisible();
 
-        await user.click(getByLabelText(dialog, 'Close'));
+        await act(() => user.click(getByLabelText(dialog, 'Close')));
 
         await waitFor(() => expect(dialog).not.toBeVisible());
     });
diff --git a/src/sponsor/alerts/AddressCopied.test.tsx b/src/sponsor/alerts/AddressCopied.test.tsx
index d897726e..6674726a 100644
--- a/src/sponsor/alerts/AddressCopied.test.tsx
+++ b/src/sponsor/alerts/AddressCopied.test.tsx
@@ -2,6 +2,7 @@
 // Copyright (c) 2022-2023 The Pybricks Authors
 
 import { Toast } from '@blueprintjs/core';
+import { act } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../test';
 import { addressCopied } from './AddressCopied';
@@ -12,7 +13,7 @@ it('should dismiss when close is clicked', async () => {
 
     const [user, message] = testRender(<Toast {...toast} />);
 
-    await user.click(message.getByRole('button', { name: /close/i }));
+    await act(() => user.click(message.getByRole('button', { name: /close/i })));
 
     expect(callback).toHaveBeenCalledWith('dismiss');
 });
diff --git a/src/status-bar/StatusBar.test.tsx b/src/status-bar/StatusBar.test.tsx
index 4f68adec..0ba74439 100644
--- a/src/status-bar/StatusBar.test.tsx
+++ b/src/status-bar/StatusBar.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2021-2022 The Pybricks Authors
+// Copyright (c) 2021-2023 The Pybricks Authors
 
-import { waitFor } from '@testing-library/react';
+import { act, waitFor } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../test';
 import { BleConnectionState } from '../ble/reducers';
@@ -21,7 +21,7 @@ it('should show popover when hub name is clicked', async () => {
         },
     });
 
-    await user.click(statusBar.getByText(testHubName));
+    await act(() => user.click(statusBar.getByText(testHubName)));
 
     await waitFor(() => statusBar.getByText('Connected to:'));
 });
@@ -40,7 +40,7 @@ it('should show popover when battery is clicked', async () => {
         },
     });
 
-    await user.click(statusBar.getByTitle('Battery'));
+    await act(() => user.click(statusBar.getByTitle('Battery')));
 
     await waitFor(() => statusBar.getByText('Battery level is OK.'));
 });
diff --git a/src/toolbar/buttons/bluetooth/BluetoothButton.test.tsx b/src/toolbar/buttons/bluetooth/BluetoothButton.test.tsx
index e1cfb830..36644bd6 100644
--- a/src/toolbar/buttons/bluetooth/BluetoothButton.test.tsx
+++ b/src/toolbar/buttons/bluetooth/BluetoothButton.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../../test';
 import { toggleBluetooth } from '../../../ble/actions';
@@ -16,7 +16,7 @@ it('should dispatch action when clicked', async () => {
         <BluetoothButton id="test-bluetooth-button" />,
     );
 
-    await user.click(button.getByRole('button', { name: 'Bluetooth' }));
+    await act(() => user.click(button.getByRole('button', { name: 'Bluetooth' })));
 
     expect(dispatch).toHaveBeenCalledWith(toggleBluetooth());
 });
diff --git a/src/toolbar/buttons/repl/ReplButton.test.tsx b/src/toolbar/buttons/repl/ReplButton.test.tsx
index 00b3900d..9ca4cf65 100644
--- a/src/toolbar/buttons/repl/ReplButton.test.tsx
+++ b/src/toolbar/buttons/repl/ReplButton.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../../test';
 import { repl } from '../../../hub/actions';
@@ -17,7 +17,7 @@ it('should dispatch action when clicked', async () => {
         hub: { hasRepl: true, runtime: HubRuntimeState.Idle },
     });
 
-    await user.click(button.getByRole('button', { name: 'REPL' }));
+    await act(() => user.click(button.getByRole('button', { name: 'REPL' })));
 
     expect(dispatch).toHaveBeenCalledWith(repl(false));
 });
diff --git a/src/toolbar/buttons/run/RunButton.test.tsx b/src/toolbar/buttons/run/RunButton.test.tsx
index cb9af47f..6e2277c4 100644
--- a/src/toolbar/buttons/run/RunButton.test.tsx
+++ b/src/toolbar/buttons/run/RunButton.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender, uuid } from '../../../../test';
 import { FileFormat } from '../../../ble-pybricks-service/protocol';
@@ -22,7 +22,7 @@ it('should dispatch action when clicked', async () => {
         },
     });
 
-    await user.click(button.getByRole('button', { name: 'Run' }));
+    await act(() => user.click(button.getByRole('button', { name: 'Run' })));
 
     expect(dispatch).toHaveBeenCalledWith(downloadAndRun(FileFormat.MultiMpy6, false));
 });
diff --git a/src/toolbar/buttons/stop/StopButton.test.tsx b/src/toolbar/buttons/stop/StopButton.test.tsx
index 8cef9e90..3f1bb60f 100644
--- a/src/toolbar/buttons/stop/StopButton.test.tsx
+++ b/src/toolbar/buttons/stop/StopButton.test.tsx
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: MIT
-// Copyright (c) 2022 The Pybricks Authors
+// Copyright (c) 2022-2023 The Pybricks Authors
 
-import { cleanup } from '@testing-library/react';
+import { act, cleanup } from '@testing-library/react';
 import React from 'react';
 import { testRender } from '../../../../test';
 import { stop } from '../../../hub/actions';
@@ -17,7 +17,7 @@ it('should dispatch action when clicked', async () => {
         hub: { runtime: HubRuntimeState.Running },
     });
 
-    await user.click(button.getByRole('button', { name: 'Stop' }));
+    await act(() => user.click(button.getByRole('button', { name: 'Stop' })));
 
     expect(dispatch).toHaveBeenCalledWith(stop());
 });