diff --git a/src/components/toolbar/ToolbarButton.tsx b/src/components/toolbar/ToolbarButton.tsx
index 33fc283a..a8435cda 100644
--- a/src/components/toolbar/ToolbarButton.tsx
+++ b/src/components/toolbar/ToolbarButton.tsx
@@ -3,7 +3,7 @@
import { Classes } from '@blueprintjs/core';
import { mergeProps } from '@react-aria/utils';
-import { AriaButtonProps } from '@react-types/button';
+import type { AriaButtonProps } from '@react-types/button';
import classNames from 'classnames';
import React, { useRef } from 'react';
import { FocusRing, useButton } from 'react-aria';
diff --git a/src/components/toolbar/types.ts b/src/components/toolbar/types.ts
index 6b20a727..5df781ad 100644
--- a/src/components/toolbar/types.ts
+++ b/src/components/toolbar/types.ts
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: MIT
// Copyright (c) 2022 The Pybricks Authors
-import { AriaLabelingProps, DOMProps } from '@react-types/shared';
+
+import type { AriaLabelingProps, DOMProps } from '@react-types/shared';
export type ToolbarProps = {
firstFocusableItemId: string;
diff --git a/src/react-app-env.d.ts b/src/react-app-env.d.ts
index c1ef2f52..222dc10e 100644
--- a/src/react-app-env.d.ts
+++ b/src/react-app-env.d.ts
@@ -2,7 +2,6 @@
// Copyright (c) 2022 The Pybricks Authors
///
-///
///
declare namespace NodeJS {