diff --git a/gatsby-browser.js b/gatsby-browser.js
index ddce947..68d5438 100644
--- a/gatsby-browser.js
+++ b/gatsby-browser.js
@@ -19,63 +19,3 @@ export const wrapRootElement = ({ element }) => {
     </FirebaseContext.Provider>
   )
 }
-
-export const onServiceWorkerUpdateFound = () => {
-  const showNotification = () => {
-    Notification.requestPermission(result => {
-      if (result === "granted") {
-        navigator.serviceWorker.ready.then(registration => {
-          registration.showNotification("Update", {
-            body: "New content is available!",
-            icon: "../images/sol-journal-logo.png",
-            vibrate: [200, 100, 200, 100, 200, 100, 400],
-            tag: "request",
-            actions: [
-              // you can customize these actions as you like
-              {
-                action: alert("update!"), // you should define this
-                title: "update",
-              },
-              {
-                action: alert("ignore"), // you should define this
-                title: "ignore",
-              },
-            ],
-          })
-        })
-      }
-    })
-  }
-
-  showNotification()
-}
-
-export const onServiceWorkerInstalled = () => {
-  const showNotification = () => {
-    Notification.requestPermission(result => {
-      if (result === "granted") {
-        navigator.serviceWorker.ready.then(registration => {
-          registration.showNotification("Installed", {
-            body: "New content is available!",
-            icon: "../images/sol-journal-logo.png",
-            vibrate: [200, 100, 200, 100, 200, 100, 400],
-            tag: "request",
-            actions: [
-              // you can customize these actions as you like
-              {
-                action: alert("update!"), // you should define this
-                title: "update",
-              },
-              {
-                action: alert("ignore"), // you should define this
-                title: "ignore",
-              },
-            ],
-          })
-        })
-      }
-    })
-  }
-
-  showNotification()
-}