diff --git a/package.json b/package.json
index f95515ee5e2..7d7003521e0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eccube",
-  "version": "4.0.5",
+  "version": "4.1-beta2",
   "description": "EC-CUBE EC open platform.",
   "main": "index.js",
   "directories": {