diff --git a/packages/backend/migration/1743894419864-AddMusicAndRegWordFieldsToMeta.js b/packages/backend/migration/1743894419864-AddMusicAndRegWordFieldsToMeta.js
new file mode 100644
index 0000000000..efc35f6b44
--- /dev/null
+++ b/packages/backend/migration/1743894419864-AddMusicAndRegWordFieldsToMeta.js
@@ -0,0 +1,18 @@
+/** @type {import('typeorm').MigrationInterface} */
+export class AddMusicAndRegWordFieldsToMeta1743894419864 {
+    name = 'AddMusicAndRegWordFieldsToMeta1743894419864'
+
+    async up(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "meta" ADD "regWordRequired" boolean NOT NULL DEFAULT false`);
+        await queryRunner.query(`ALTER TABLE "meta" ADD "registrationWord" character varying(1024)`);
+        await queryRunner.query(`ALTER TABLE "meta" ADD "musicSource" character varying(1024)`);
+        await queryRunner.query(`ALTER TABLE "meta" ADD "musicEnabled" boolean NOT NULL DEFAULT false`);
+    }
+
+    async down(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "musicEnabled"`);
+        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "musicSource"`);
+        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "registrationWord"`);
+        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "regWordRequired"`);
+    }
+}
diff --git a/packages/backend/migration/1743894419864-AddMusicFieldsToMeta.js b/packages/backend/migration/1743894419864-AddMusicFieldsToMeta.js
deleted file mode 100644
index 9cbf6d7443..0000000000
--- a/packages/backend/migration/1743894419864-AddMusicFieldsToMeta.js
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-import { MigrationInterface, QueryRunner } from "typeorm";
-
-export class AddMusicFieldsToMeta1743894419864 implements MigrationInterface {
-    name = 'AddMusicFieldsToMeta1743894419864'
-
-    public async up(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.query(`ALTER TABLE "meta" ADD "musicSource" character varying(1024)`);
-        await queryRunner.query(`ALTER TABLE "meta" ADD "musicEnabled" boolean NOT NULL DEFAULT false`);
-    }
-
-    public async down(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "musicEnabled"`);
-        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "musicSource"`);
-    }
-}
diff --git a/packages/backend/migration/1743894419864-AddRegWordFieldsToMeta.js b/packages/backend/migration/1743894419864-AddRegWordFieldsToMeta.js
deleted file mode 100644
index 89bbe21783..0000000000
--- a/packages/backend/migration/1743894419864-AddRegWordFieldsToMeta.js
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * SPDX-FileCopyrightText: syuilo and misskey-project
- * SPDX-License-Identifier: AGPL-3.0-only
- */
-
-import { MigrationInterface, QueryRunner } from "typeorm";
-
-export class AddRegWordFieldsToMeta1743894419864 implements MigrationInterface {
-    name = 'AddRegWordFieldsToMeta1743894419864'
-
-    public async up(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.query(`ALTER TABLE "meta" ADD "regWordRequired" boolean NOT NULL DEFAULT false`);
-        await queryRunner.query(`ALTER TABLE "meta" ADD "registrationWord" character varying(1024)`);
-    }
-
-    public async down(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "registrationWord"`);
-        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "regWordRequired"`);
-    }
-}