diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 60dda1530ac2b0c4ca820da1caf9cea499a905e2..5318c9d9f808ab21df2032eb0c5ed83da82e10ee 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,7 +23,7 @@ test:
   before_script:
     - adduser --disabled-password --gecos "Test User" testuser
   script:
-    - sudo -u testuser tox
+    - sudo -u testuser tox -e py38
   artifacts:
     paths:
       - htmlcov/