diff --git a/src/about/AboutDialog.tsx b/src/about/AboutDialog.tsx
index 8eab2970..cd880f1d 100644
--- a/src/about/AboutDialog.tsx
+++ b/src/about/AboutDialog.tsx
@@ -9,6 +9,7 @@ import React from 'react';
 import { connect } from 'react-redux';
 import {
     appName,
+    appVersion,
     legoDisclaimer,
     pybricksCopyright,
     pybricksWebsiteUrl,
@@ -20,8 +21,6 @@ import en from './i18n.en.json';
 
 import './about.scss';
 
-const version = process.env.REACT_APP_VERSION;
-
 type OwnProps = { isOpen: boolean; onClose: () => void };
 
 type AboutDialogProps = OwnProps & WithI18nProps;
@@ -35,7 +34,7 @@ class AboutDialog extends React.Component<AboutDialogProps> {
         const { isOpen, onClose, i18n } = this.props;
         return (
             <Dialog
-                title={`${appName} v${version}`}
+                title={`${appName} v${appVersion}`}
                 isOpen={isOpen}
                 onClose={() => onClose()}
             >
diff --git a/src/app/constants.ts b/src/app/constants.ts
index 62987140..c0c849e4 100644
--- a/src/app/constants.ts
+++ b/src/app/constants.ts
@@ -9,6 +9,10 @@ export const tooltipDelay = 1000;
 /** Official name of the app. */
 export const appName = process.env.REACT_APP_NAME || 'REACT_APP_NAME is undefined';
 
+/** The version of the app (without the "v" prefix). */
+export const appVersion =
+    process.env.REACT_APP_VERSION || 'REACT_APP_VERSION is undefined';
+
 /** URL to main Pybricks website. */
 export const pybricksWebsiteUrl = 'https://pybricks.com';
 
diff --git a/src/index.tsx b/src/index.tsx
index b1158128..778710fc 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -11,6 +11,7 @@ import { createLogger } from 'redux-logger';
 import createSagaMiddleware from 'redux-saga';
 import './index.scss';
 import App from './app/App';
+import { appVersion } from './app/constants';
 import { i18nManager } from './i18n';
 import * as I18nToaster from './notifications/I18nToaster';
 import { rootReducer } from './reducers';
@@ -65,7 +66,7 @@ store.subscribe(() => {
 });
 
 // special styling for beta versions
-if (process.env.REACT_APP_VERSION?.match(/beta/)) {
+if (appVersion.match(/beta/)) {
     document.body.classList.add('pb-beta');
 }