diff --git a/gatsby-browser.js b/gatsby-browser.js
index c40415d9..e5f987bb 100755
--- a/gatsby-browser.js
+++ b/gatsby-browser.js
@@ -5,3 +5,15 @@ import './src/styles/global.scss'
 if (typeof window.IntersectionObserver === 'undefined') {
     import('intersection-observer')
 }
+
+// Display a message when a service worker updates
+// https://www.gatsbyjs.org/docs/add-offline-support-with-a-service-worker/#displaying-a-message-when-a-service-worker-updates
+export const onServiceWorkerUpdateReady = () => {
+    const answer = window.confirm(
+        'This application has been updated. ' +
+            'Reload to display the latest version?'
+    )
+    if (answer === true) {
+        window.location.reload()
+    }
+}