diff --git a/_layouts/default.html b/_layouts/default.html
index d863ac32..6a2482b8 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -18,7 +18,7 @@
 <script>
   if ('serviceWorker' in navigator) {
     window.addEventListener('load', function() {
-      navigator.serviceWorker.register('/sw.js').then(function(registration) {
+      navigator.serviceWorker.register('/sw.js?0151').then(function(registration) {
         // Successfully registered the Service Worker
         //console.log('Service Worker registration successful with scope: ', registration.scope);
       }).catch(function(err) {
diff --git a/sw.js b/sw.js
index 797e5269..e82041e8 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,4 @@
-var cacheName = 'csswizardry:0150';
+var cacheName = 'csswizardry:0151';
 var cacheFiles = [
   '/',
   '/about/',
@@ -63,7 +63,7 @@ self.addEventListener('fetch', function(event) {
 // Empty out any caches that don’t match the ones listed.
 self.addEventListener('activate', function(event) {
 
-  var cacheWhitelist = ['csswizardry:0150'];
+  var cacheWhitelist = ['csswizardry:0151'];
 
   event.waitUntil(
     caches.keys().then(function(cacheNames) {