diff --git a/lib/Drupal.php b/lib/Drupal.php
index 43ee6d2a08b..a3582ef7a35 100644
--- a/lib/Drupal.php
+++ b/lib/Drupal.php
@@ -82,7 +82,7 @@ class Drupal {
   /**
    * The current system version.
    */
-  const VERSION = '8.9.17';
+  const VERSION = '8.9.18';
 
   /**
    * Core API compatibility.