diff --git a/Worker.php b/Worker.php
index 933595f1c..9bca4b5bb 100644
--- a/Worker.php
+++ b/Worker.php
@@ -33,7 +33,7 @@ class Worker
      *
      * @var string
      */
-    const VERSION = '4.0.38';
+    const VERSION = '4.0.39';
 
     /**
      * Status starting.