diff --git a/lib/pluginlib.php b/lib/pluginlib.php
index a449bc647c3..7383d7b8898 100644
--- a/lib/pluginlib.php
+++ b/lib/pluginlib.php
@@ -993,7 +993,7 @@ class available_update_checker {
         if (!empty($CFG->config_php_settings['alternativeupdateproviderurl'])) {
             return $CFG->config_php_settings['alternativeupdateproviderurl'];
         } else {
-            return 'http://download.moodle.org/api/1.1/updates.php';
+            return 'https://download.moodle.org/api/1.1/updates.php';
         }
     }