diff --git a/source/layouts/layout.erb b/source/layouts/layout.erb
index 04bab60..bcceb15 100644
--- a/source/layouts/layout.erb
+++ b/source/layouts/layout.erb
@@ -26,7 +26,7 @@ under the License.
 
     <%= stylesheet_link_tag "screen", media: 'screen' %>
     <%= stylesheet_link_tag "print", media: 'print' %>
-    <script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
+    <script src="//code.jquery.com/jquery-1.10.1.min.js"></script>
     <%= javascript_include_tag  "all" %>
 
     <script>