diff --git a/app/Helpers/Gravatar.php b/app/Helpers/Gravatar.php
index de9e8407..7460cd9d 100644
--- a/app/Helpers/Gravatar.php
+++ b/app/Helpers/Gravatar.php
@@ -5,6 +5,6 @@ class Gravatar
 {
     public static function img($email, $size = 50)
     {
-        return "http://www.gravatar.com/avatar/" . md5(strtolower(trim($email))) . "?s=" . $size;
+        return "//www.gravatar.com/avatar/" . md5(strtolower(trim($email))) . "?s=" . $size;
     }
 }
\ No newline at end of file