diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55e1f900b..795bef150 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,32 +8,13 @@ If you encounter any problems with updating, please try the following:
 Migration
 ------------------------------
 #### 1
-`ormconfig.json`という名前で、Misskeyのインストール場所(package.jsonとかがあるディレクトリ)に新たなファイルを作る。中身は次のようにします:
-``` json
-{
-	"type": "postgres",
-	"host": "PostgreSQLのホスト",
-	"port": 5432,
-	"username": "PostgreSQLのユーザー名",
-	"password": "PostgreSQLのパスワード",
-	"database": "PostgreSQLのデータベース名",
-	"entities": ["src/models/entities/*.ts"],
-	"migrations": ["migration/*.ts"],
-	"cli": {
-		"migrationsDir": "migration"
-	}
-}
-```
-上記の各種PostgreSQLの設定(ポートも)は、設定ファイルに書いてあるものをコピーしてください。
-
-#### 2
 ```
 npm i -g ts-node
 ```
 
-#### 3
+#### 2
 ```
-ts-node ./node_modules/typeorm/cli.js migration:run
+npm run migrate
 ```
 
 How to migrate to v11 from v10
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c0c72c470..ace822c63 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -199,7 +199,7 @@ const user = await Users.findOne(userId).then(ensure);
 ```
 
 ### Migration作成方法
-コードの変更をした後、`ormconfig.json`（書き方はCONTRIBUTING.mdを参照）を用意し、
+コードの変更をした後、`ormconfig.json`（`npm run ormconfig`で生成）を用意し、
 
 ```
 npm i -g ts-node
diff --git a/package.json b/package.json
index 71fa1509e..5301118fd 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,8 @@
 	"scripts": {
 		"start": "node ./index.js",
 		"init": "node ./built/init.js",
+		"ormconfig": "node ./built/ormconfig.js",
+		"migrate": "npm run ormconfig && ts-node ./node_modules/typeorm/cli.js migration:run",
 		"build": "webpack && gulp build",
 		"webpack": "webpack",
 		"watch": "webpack --watch",
diff --git a/src/ormconfig.ts b/src/ormconfig.ts
new file mode 100644
index 000000000..91f33181f
--- /dev/null
+++ b/src/ormconfig.ts
@@ -0,0 +1,18 @@
+import * as fs from 'fs';
+import config from './config';
+
+const json = {
+	type: 'postgres',
+	host: config.db.host,
+	port: config.db.port,
+	username: config.db.user,
+	password: config.db.pass,
+	database: config.db.db,
+	entities: ['src/models/entities/*.ts'],
+	migrations: ['migration/*.ts'],
+	cli: {
+		migrationsDir: 'migration'
+	}
+};
+
+fs.writeFileSync('ormconfig.json', JSON.stringify(json));