diff --git a/element/qrcode/version.php b/element/qrcode/version.php
index b9c9a9f..5b4166b 100644
--- a/element/qrcode/version.php
+++ b/element/qrcode/version.php
@@ -24,6 +24,6 @@
 
 defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
 
-$plugin->version   = 2018120300; // The current module version (Date: YYYYMMDDXX).
-$plugin->requires  = 2018120300; // Requires this Moodle version (3.6).
+$plugin->version   = 2018051700; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2018051700; // Requires this Moodle version (3.5).
 $plugin->component = 'customcertelement_qrcode';