diff --git a/package.json b/package.json
index f54ed1a6929..3760d1f5466 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eccube",
-  "version": "4.2.0-alpha",
+  "version": "4.2.0-beta",
   "description": "EC-CUBE EC open platform.",
   "main": "index.js",
   "directories": {
diff --git a/src/Eccube/Common/Constant.php b/src/Eccube/Common/Constant.php
index 2ab89c3f15f..0409575c718 100644
--- a/src/Eccube/Common/Constant.php
+++ b/src/Eccube/Common/Constant.php
@@ -18,7 +18,7 @@ class Constant
     /**
      * EC-CUBE VERSION.
      */
-    const VERSION = '4.2.0-alpha';
+    const VERSION = '4.2.0-beta';
 
     /**
      * Enable value.