--- a/ckanext/ga_report/templates/ga_report/site/index.html
+++ b/ckanext/ga_report/templates/ga_report/site/index.html
@@ -9,8 +9,8 @@
 
   <py:def function="optional_head">
     <link rel="stylesheet" type="text/css" href="/scripts/vendor/rickshaw.min.css"/>
-    <link rel="stylesheet" type="text/css" href="/css/ga_report.css"/>
-    <script type="text/javascript" src="/scripts/ckanext_ga_reports.js"></script>
+    <link rel="stylesheet" type="text/css" href="/css/ga_report.css?1"/>
+    <script type="text/javascript" src="/scripts/ckanext_ga_reports.js?1"></script>
     <script type="text/javascript" src="/scripts/vendor/jquery.sparkline.modified.js"></script>
     <script type="text/javascript" src="/scripts/rickshaw_ie7_shim.js"></script>
     <script type="text/javascript" src="/scripts/vendor/d3.v2.js"></script>