diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f158596591c5786dce7ab00dc9ad1256b87348ff..c905c00413e89d37b28842abac64607c7e398428 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,6 +5,15 @@ stages:
   - test
   - deploy
 
+build:
+  image: python:3.8.5-slim
+  before_script:
+    - apt-get clean
+    - pip install -r backend/secfit/requirements.txt
+  script:
+    - cd backend/secfit
+    - python manage.py runserver
+
 test-backend:
   stage: test
   image: python:3.8.5-slim
diff --git a/backend/secfit/users/tests/UserSerializer.py b/backend/secfit/users/tests/UserSerializer.py
index 49ee980565ce33f0e79d71793ce19b95120d0c83..b290f431b5306e960d95aab61cb625817eac2fb6 100644
--- a/backend/secfit/users/tests/UserSerializer.py
+++ b/backend/secfit/users/tests/UserSerializer.py
@@ -1,7 +1,6 @@
 from django.test import TestCase
-from backend.secfit.users.serializers import UserSerializer
+from users.serializers import UserSerializer
 from django.contrib.auth import get_user_model
-from rest_framework import serializers
 
 class UserSerializerTestCase(TestCase):