diff --git a/template/index.html b/template/index.html
index 3a526793..1712850f 100644
--- a/template/index.html
+++ b/template/index.html
@@ -2,7 +2,7 @@
 
 <head>
 
-	<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet">
+	<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet">
 	<link href="material/ripples.css" rel="stylesheet">
 	<link href="material/material.css" rel="stylesheet">
 
@@ -45,4 +45,4 @@
 
 </body>
 
-</html>
\ No newline at end of file
+</html>
