--- a/doc/theme/sphinx_rtd_theme/layout.html
+++ b/doc/theme/sphinx_rtd_theme/layout.html
@@ -85,7 +85,7 @@
   {%- endblock %}
   {%- block extrahead %} {% endblock %}
 
-  <script src="//cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
+  <script src="_static/js/modernizr.min.js"></script>
 
 </head>
 
