diff --git a/core/lib/Drupal.php b/core/lib/Drupal.php
index 4466f3f6632..5d6ea5e657f 100644
--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -75,7 +75,7 @@ class Drupal {
   /**
    * The current system version.
    */
-  const VERSION = '9.3.19-dev';
+  const VERSION = '9.3.20-dev';
 
   /**
    * Core API compatibility.