diff --git a/quickstart.html b/quickstart.html
index f42808e..146ce9a 100644
--- a/quickstart.html
+++ b/quickstart.html
@@ -15,7 +15,7 @@
 
     <script type="text/javascript">
       // Client ID and API key from the Developer Console
-      var CLIENT_ID = '282164278400-fibsdnpmvl7hnhu0v837mql3f5u0b8lu.apps.googleusercontent.com';
+      var CLIENT_ID = '951578952608-igq1knaukc28hl3a7slj66l5lerijgue.apps.googleusercontent.com';
 
       // Array of API discovery doc URLs for APIs used by the quickstart
       var DISCOVERY_DOCS = ["https://www.googleapis.com/discovery/v1/apis/calendar/v3/rest"];