diff --git a/index.php b/index.php
index 9efdbe0..c6e77bd 100644
--- a/index.php
+++ b/index.php
@@ -54,7 +54,7 @@
     <script type="text/javascript" src="<?php echo getUrlWithVersion("util.js") ?>"></script>
     <link rel="related" href="<?php echo $config['cops_full_url'] ?>feed.php" type="application/atom+xml;profile=opds-catalog" title="<?php echo $config['cops_title_default']; ?>" /> 
     <link rel="icon" type="image/vnd.microsoft.icon" href="<?php echo $config['cops_icon']; ?>" />
-    <link rel='stylesheet' type='text/css' href='http://fonts.googleapis.com/css?family=Open+Sans:400,300italic,800,300,400italic,600,600italic,700,700italic,800italic' />
+    <link rel='stylesheet' type='text/css' href='https://fonts.googleapis.com/css?family=Open+Sans:400,300italic,800,300,400italic,600,600italic,700,700italic,800italic' />
     <link rel="stylesheet" type="text/css" href="<?php echo getUrlWithVersion("resources/normalize/normalize.css") ?>" />
     <link rel="stylesheet" type="text/css" href="<?php echo getUrlWithVersion("styles/font-awesome.css") ?>" media="screen" />
     <link rel="stylesheet" type="text/css" href="<?php echo getUrlWithVersion(getCurrentCss ()) ?>" media="screen" />