diff --git a/data/class/SC_Initial.php b/data/class/SC_Initial.php
index f2e6f8662e..f13e6a6ddc 100644
--- a/data/class/SC_Initial.php
+++ b/data/class/SC_Initial.php
@@ -35,7 +35,7 @@ class SC_Initial
     public function __construct()
     {
         /** EC-CUBEのバージョン */
-        define('ECCUBE_VERSION', '2.13.5');
+        define('ECCUBE_VERSION', '2.17.0-RC');
     }
 
     /**