diff --git a/Slim/App.php b/Slim/App.php
index b13649ab2..fb8fdf9ff 100644
--- a/Slim/App.php
+++ b/Slim/App.php
@@ -52,7 +52,7 @@ class App
      *
      * @var string
      */
-    const VERSION = '3.9.1-dev';
+    const VERSION = '3.9.1';
 
     /**
      * Container