Fix website url to use https.
diff --git a/scripts/data_files/version_features.fmt b/scripts/data_files/version_features.fmt
index c6d8274..76d107d 100644
--- a/scripts/data_files/version_features.fmt
+++ b/scripts/data_files/version_features.fmt
@@ -3,7 +3,7 @@
*
* Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
*
- * This file is part of mbed TLS (http://www.polarssl.org)
+ * This file is part of mbed TLS (https://www.polarssl.org)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by