diff --git a/index.html b/index.html
index 1c7e596..a64e136 100644
--- a/index.html
+++ b/index.html
@@ -7,8 +7,8 @@
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
 
-        <link rel="stylesheet" href="css/normalize.css">
-        <link rel="stylesheet" href="css/main.css">
+        <link rel="stylesheet" href="css/normalize.css?8a342d6">
+        <link rel="stylesheet" href="css/main.css?8a342d6">
     </head>
     <body>
         <div class="no-gamepad">No gamepad detected</div>
@@ -57,6 +57,6 @@
         </div>
 
         <script src="https://static.e7d.io/libs/jquery/3.1.1/jquery.min.js"></script>
-        <script src="js/gamepad.js"></script>
+        <script src="js/gamepad.js?8a342d6"></script>
     </body>
 </html>
