diff --git a/_includes/polyfills.html b/_includes/polyfills.html
index 88248d32d..2e114f1f6 100644
--- a/_includes/polyfills.html
+++ b/_includes/polyfills.html
@@ -1,7 +1,7 @@
 <!--[if lt IE 9]>
 <script src='//cdnjs.cloudflare.com/ajax/libs/nwmatcher/1.2.5/nwmatcher.min.js'></script>
-<script src='//cdnjs.cloudflare.com/ajax/libs/json2/20140204/json2.js'></script>
+<script src='//cdnjs.cloudflare.com/ajax/libs/json2/20140204/json2.min.js'></script>
 <script src='//cdnjs.cloudflare.com/ajax/libs/selectivizr/1.0.2/selectivizr-min.js'></script>
-<script src='//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.js'></script>
+<script src='//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js'></script>
 <script src='//cdnjs.cloudflare.com/ajax/libs/respond.js/1.4.2/respond.js'></script>
 <![endif]--> 
diff --git a/ie.md b/ie.md
index b25b090bb..2d037ea37 100644
--- a/ie.md
+++ b/ie.md
@@ -102,7 +102,7 @@ layout: default
 ```nohighlight
 <!--[if lt IE 9]>
 <script src='//cdnjs.cloudflare.com/ajax/libs/nwmatcher/1.2.5/nwmatcher.min.js'></script>
-<script src='//cdnjs.cloudflare.com/ajax/libs/json2/20140204/json2.js'>
+<script src='//cdnjs.cloudflare.com/ajax/libs/json2/20140204/json2.min.js'>
 <script src='//cdnjs.cloudflare.com/ajax/libs/selectivizr/1.0.2/selectivizr-min.js'>
 <script src='//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js'>
 <script src='//cdnjs.cloudflare.com/ajax/libs/respond.js/1.4.2/respond.js'>