diff --git a/appveyor.yml b/appveyor.yml
index 10dfc3ad..e120b8f8 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: 1.0.{build}
+version: 0.4.0.{build}
 build_script:
 - cmd: >-
     npm install -g gulp
@@ -18,4 +18,4 @@ build_script:
     move electron-mattermost-win32-x64 electron-mattermost-win64\electron-mattermost-win64
 artifacts:
 - path: release\electron-mattermost-win32
-- path: release\electron-mattermost-win64
\ No newline at end of file
+- path: release\electron-mattermost-win64
diff --git a/package.json b/package.json
index 0ed72c64..f6fc091f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "electron-mattermost",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "Desktop app for Mattermost that run on Electron",
   "main": "main.js",
   "author": "Yuya Ochiai",
diff --git a/src/package.json b/src/package.json
index ba9b01ca..ee093af6 100644
--- a/src/package.json
+++ b/src/package.json
@@ -1,6 +1,6 @@
 {
   "name": "electron-mattermost",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "Desktop app for Mattermost that run on Electron",
   "main": "main.js",
   "author": "Yuya Ochiai",