diff --git a/src/Worker.php b/src/Worker.php
index be0d3e3d4..a01390f89 100644
--- a/src/Worker.php
+++ b/src/Worker.php
@@ -51,7 +51,7 @@ class Worker
      *
      * @var string
      */
-    public const VERSION = '5.0.0-beta.7';
+    final public const VERSION = '5.0.0-beta.7';
 
     /**
      * Status starting.