diff --git a/packages/backend/src/graphql/mutations/login.ts b/packages/backend/src/graphql/mutations/login.ts
index 837b47ee..54a51e3e 100644
--- a/packages/backend/src/graphql/mutations/login.ts
+++ b/packages/backend/src/graphql/mutations/login.ts
@@ -1,6 +1,5 @@
 import User from '../../models/user';
-import jwt from 'jsonwebtoken';
-import appConfig from '../../config/app';
+import createAuthTokenByUserId from '../../helpers/create-auth-token-by-user-id';
 
 type Params = {
   input: {
@@ -9,18 +8,13 @@ type Params = {
   };
 };
 
-const TOKEN_EXPIRES_IN = '14d';
-
 const login = async (_parent: unknown, params: Params) => {
   const user = await User.query().findOne({
     email: params.input.email.toLowerCase(),
   });
 
   if (user && (await user.login(params.input.password))) {
-    const token = jwt.sign({ userId: user.id }, appConfig.appSecretKey, {
-      expiresIn: TOKEN_EXPIRES_IN,
-    });
-
+    const token = createAuthTokenByUserId(user.id);
     return { token, user };
   }