diff --git a/core/lib/Drupal.php b/core/lib/Drupal.php
index a900883007460c26a1a501b6c93affbd4da2c5e9..80900aa9aa458de47ecc5644b9b67a98cb66b3e7 100644
--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -81,7 +81,7 @@ class Drupal {
   /**
    * The current system version.
    */
-  const VERSION = '8.3.7-dev';
+  const VERSION = '8.3.8-dev';
 
   /**
    * Core API compatibility.