diff --git a/packages/backend/src/core/NotificationService.ts b/packages/backend/src/core/NotificationService.ts
index 00bca4c0c..48f2c6584 100644
--- a/packages/backend/src/core/NotificationService.ts
+++ b/packages/backend/src/core/NotificationService.ts
@@ -1,3 +1,4 @@
+import { setTimeout } from 'node:timers/promises';
 import { Inject, Injectable, OnApplicationShutdown } from '@nestjs/common';
 import { In } from 'typeorm';
 import { DI } from '@/di-symbols.js';