diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d351014..b46ce36 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,11 +8,12 @@ stages:
 test:
   stage: test
   script:
+  - useradd matemat
   - apt-get update -qy
   - apt-get install -y --no-install-recommends python3-dev python3-pip python3-coverage python3-setuptools build-essential
   - pip3 install wheel
   - pip3 install -r requirements.txt
-  - python3-coverage run --branch -m unittest discover matemat
+  - su - matemat 'python3-coverage run --branch -m unittest discover matemat'
   - python3-coverage report -m --include 'matemat/*' --omit '*/test_*.py'
 
 codestyle: