diff --git a/modules/system/system.module b/modules/system/system.module
index 18d8a8870752..8940ad0426b5 100644
--- a/modules/system/system.module
+++ b/modules/system/system.module
@@ -3386,7 +3386,7 @@ function system_timezone($abbreviation = '', $offset = -1, $is_daylight_saving_t
  * @ingroup themeable
  */
 function theme_system_powered_by() {
-  return '<span>' . t('Powered by <a href="@poweredby">Drupal</a>', array('@poweredby' => 'http://drupal.org')) . '</span>';
+  return '<span>' . t('Powered by <a href="@poweredby">Drupal</a>', array('@poweredby' => 'https://www.drupal.org')) . '</span>';
 }
 
 /**