diff --git a/src/util/migration/postgres/1770168396106-threadMembers.ts b/src/util/migration/postgres/1770168396106-threadMembers.ts
deleted file mode 100644
index c97de1645..000000000
--- a/src/util/migration/postgres/1770168396106-threadMembers.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-import { MigrationInterface, QueryRunner } from "typeorm";
-
-export class ThreadMembers1770168396106 implements MigrationInterface {
-    name = "ThreadMembers1770168396106";
-
-    public async up(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.query(`CREATE UNIQUE INDEX "IDX_38d4f704373da3f0dc9b352acs9" ON "thread_members" ("id", "member_idx") `);
-        await queryRunner.query(
-            `ALTER TABLE "thread_members" ADD CONSTRAINT "FK_4721015b4e24ad29da55dbd2de0" FOREIGN KEY ("member_idx") REFERENCES "members"("index") ON DELETE CASCADE ON UPDATE NO ACTION`,
-        );
-    }
-
-    public async down(queryRunner: QueryRunner): Promise<void> {
-        await queryRunner.query(`ALTER TABLE "thread_members" DROP CONSTRAINT "FK_4721015b4e24ad29da55dbd2de0"`);
-        await queryRunner.query(`CREATE UNIQUE INDEX "IDX_bde0970b6a26bdbd83508addd2" ON "thread_members" ("id", "member_idx") `);
-    }
-}