diff --git a/_includes/nav.html b/_includes/nav.html
index b35ee422..389b60c1 100644
--- a/_includes/nav.html
+++ b/_includes/nav.html
@@ -18,7 +18,6 @@
     <li class="site-nav__item  has-sub-menu">
       <a href=/services/ class="site-nav__link  site-nav__services">Services</a>
       <ul class="site-nav__sub-menu">
-        <li class=site-nav__item><a href=/masterclasses/ class="site-nav__sub-link site-nav__masterclasses">Masterclasses <sup style="text-transform: uppercase; font-size: 0.625rem; line-height: 1.2; color: #f43059;"><strong>New</strong></sup></a></li>
         <li class=site-nav__item><a href=/sentinel/      class="site-nav__sub-link site-nav__sentinel">Sentinel</a></li>
         <li class=site-nav__item><a href=/workshops/     class="site-nav__sub-link site-nav__workshops">Workshops and Training</a></li>
         <li class=site-nav__item><a href=/consultancy/   class="site-nav__sub-link site-nav__consultancy">Consultancy</a></li>
diff --git a/_layouts/default.html b/_layouts/default.html
index 6a2482b8..0cea325f 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?0151').then(function(registration) {
+      navigator.serviceWorker.register('/sw.js?0152').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 e82041e8..43089455 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,4 @@
-var cacheName = 'csswizardry:0151';
+var cacheName = 'csswizardry:0152';
 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:0151'];
+  var cacheWhitelist = ['csswizardry:0152'];
 
   event.waitUntil(
     caches.keys().then(function(cacheNames) {