diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d0f266eee7686bc81389ec18a459f8ce20faa7b5..30b6d08b0ca4e6eec4cdbdca9cc443fe573f0a37 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,7 @@
 test_python_numpy:
     image: python:3.9
-    tags: - docker
+    tags:
+        - docker
     cache:
         key: "python39_pip_cache_20220731"
         paths: