diff --git a/tests/index.html b/tests/index.html
index fcd4843..db5644a 100644
--- a/tests/index.html
+++ b/tests/index.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8">
   <title><%= htmlWebpackPlugin.options.title %></title>
-  <link href="https://cdn.rawgit.com/mochajs/mocha/2.2.5/mocha.css" rel="stylesheet" />
+  <link href="https://cdn.jsdelivr.net/gh/mochajs/mocha@2.2.5/mocha.css" rel="stylesheet" />
 </head>
 <body>
   <h1 style="font-family: sans-serif; margin: 1rem; ">
