diff --git a/packages/backend/server/src/core/auth/service.ts b/packages/backend/server/src/core/auth/service.ts
index 69751bcee8..d2a6a73598 100644
--- a/packages/backend/server/src/core/auth/service.ts
+++ b/packages/backend/server/src/core/auth/service.ts
@@ -4,6 +4,7 @@ import {
   NotAcceptableException,
   OnApplicationBootstrap,
 } from '@nestjs/common';
+import { Cron, CronExpression } from '@nestjs/schedule';
 import type { User } from '@prisma/client';
 import { PrismaClient } from '@prisma/client';
 import type { CookieOptions, Request, Response } from 'express';
@@ -455,4 +456,23 @@ export class AuthService implements OnApplicationBootstrap {
           to: email,
         });
   }
+
+  @Cron(CronExpression.EVERY_DAY_AT_MIDNIGHT)
+  async cleanExpiredSessions() {
+    await this.db.session.deleteMany({
+      where: {
+        expiresAt: {
+          lte: new Date(),
+        },
+      },
+    });
+
+    await this.db.userSession.deleteMany({
+      where: {
+        expiresAt: {
+          lte: new Date(),
+        },
+      },
+    });
+  }
 }
diff --git a/packages/backend/server/src/core/auth/token.ts b/packages/backend/server/src/core/auth/token.ts
index 16c10d1204..0422621767 100644
--- a/packages/backend/server/src/core/auth/token.ts
+++ b/packages/backend/server/src/core/auth/token.ts
@@ -87,8 +87,8 @@ export class TokenService {
   }
 
   @Cron(CronExpression.EVERY_DAY_AT_MIDNIGHT)
-  cleanExpiredTokens() {
-    return this.db.verificationToken.deleteMany({
+  async cleanExpiredTokens() {
+    await this.db.verificationToken.deleteMany({
       where: {
         expiresAt: {
           lte: new Date(),