diff --git a/package.json b/package.json
index fdfb088..94bb125 100644
--- a/package.json
+++ b/package.json
@@ -8,9 +8,9 @@
   "private": true,
   "scripts": {
     "start": "webpack --watch",
-    "dev": "webpack",
     "stamp": "node scripts/version.js",
-    "prod": "NODE_ENV=production webpack && cd dist && rm -f ./gitako.zip && zip gitako.zip -r *"
+    "postversion": "npm run stamp && git add src/manifest.json && git commit --amend --no-edit",
+    "prod": "npm run stamp && NODE_ENV=production webpack && cd dist && rm -f ./gitako.zip && zip gitako.zip -r *"
   },
   "dependencies": {
     "nprogress": "^0.2.0",
diff --git a/scripts/version.js b/scripts/version.js
index d9d847c..3aa7456 100644
--- a/scripts/version.js
+++ b/scripts/version.js
@@ -3,8 +3,8 @@ const path = require('path')
 
 const rootPath = path.resolve(__dirname, '../')
 const packageJSON = require(path.resolve(rootPath, 'package.json'))
-const manifestPath = path.resolve(rootPath, 'src/manifest.json');
+const manifestPath = path.resolve(rootPath, 'src/manifest.json')
 const manifest = require(manifestPath)
 
 manifest.version = packageJSON.version
-fs.writeFileSync(manifestPath, JSON.stringify(manifest), 'utf-8')
+fs.writeFileSync(manifestPath, JSON.stringify(manifest, null, '  '), 'utf-8')
diff --git a/src/manifest.json b/src/manifest.json
index 068d527..6cd153e 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -1 +1,26 @@
-{"manifest_version":2,"name":"Gitako","version":"0.3.0","author":"EnixCoda","icons":{"128":"icons/Gitako-128x128.png"},"description":"yet another GitHub extension, inspired by Octotree and GayHub.","homepage_url":"https://github.com/EnixCoda/Gitako","permissions":["tabs","storage","*://github.com/*"],"content_scripts":[{"matches":["https://github.com/*"],"js":["content.js"]}]}
\ No newline at end of file
+{
+  "manifest_version": 2,
+  "name": "Gitako",
+  "version": "0.3.0",
+  "author": "EnixCoda",
+  "icons": {
+    "128": "icons/Gitako-128x128.png"
+  },
+  "description": "yet another GitHub extension, inspired by Octotree and GayHub.",
+  "homepage_url": "https://github.com/EnixCoda/Gitako",
+  "permissions": [
+    "tabs",
+    "storage",
+    "*://github.com/*"
+  ],
+  "content_scripts": [
+    {
+      "matches": [
+        "https://github.com/*"
+      ],
+      "js": [
+        "content.js"
+      ]
+    }
+  ]
+}
\ No newline at end of file