diff --git a/core/lib/Drupal.php b/core/lib/Drupal.php
index f6071d33f71881f123be5104b40dd6f208145f59..b8f539f1d2d2e5ad7545fa53a314b28596b29a72 100644
--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -81,7 +81,7 @@ class Drupal {
   /**
    * The current system version.
    */
-  const VERSION = '8.4.1';
+  const VERSION = '8.4.2';
 
   /**
    * Core API compatibility.