diff --git a/package.json b/package.json
index 8e02c68..8c0bf2b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "kevins-data-toolbox",
-  "version": "2.4.5",
+  "version": "2.4.6",
   "private": true,
   "dependencies": {
     "@loadable/component": "^5.15.0",
diff --git a/src/services/serviceWorkers.ts b/src/services/serviceWorkers.ts
index 772814f..5eb4d0a 100644
--- a/src/services/serviceWorkers.ts
+++ b/src/services/serviceWorkers.ts
@@ -13,18 +13,20 @@ let eventListeners: Map<events, ((ev: Event) => void)[]> = new Map<events, ((ev:
 
 let pendingUpdate = false;
 
-navigator.serviceWorker.getRegistration().then((reg) => {
-  if(reg && reg.waiting) {
-    pendingUpdate = true;
-    let handlers = eventListeners.get(events.updateAvailable) || [];
-
-    handlers.forEach((func) => {
-      func({
-        type: events.updateAvailable
+if('serviceWorker' in navigator) {
+  navigator.serviceWorker.getRegistration().then((reg) => {
+    if(reg && reg.waiting) {
+      pendingUpdate = true;
+      let handlers = eventListeners.get(events.updateAvailable) || [];
+  
+      handlers.forEach((func) => {
+        func({
+          type: events.updateAvailable
+        });
       });
-    });
-  }
-})
+    }
+  })
+}
 
 const broadcast = new BroadcastChannel('sw-updates');