diff --git a/.themes/classic/source/_includes/custom/head.html b/.themes/classic/source/_includes/custom/head.html
index 85879f4a22..824a41e749 100644
--- a/.themes/classic/source/_includes/custom/head.html
+++ b/.themes/classic/source/_includes/custom/head.html
@@ -1,3 +1,3 @@
 <!--Fonts from Google"s Web font directory at http://google.com/webfonts -->
-<link href="http://fonts.googleapis.com/css?family=PT+Serif:regular,italic,bold,bolditalic" rel="stylesheet" type="text/css">
-<link href="http://fonts.googleapis.com/css?family=PT+Sans:regular,italic,bold,bolditalic" rel="stylesheet" type="text/css">
+<link href="//fonts.googleapis.com/css?family=PT+Serif:regular,italic,bold,bolditalic" rel="stylesheet" type="text/css">
+<link href="//fonts.googleapis.com/css?family=PT+Sans:regular,italic,bold,bolditalic" rel="stylesheet" type="text/css">