diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e474801792f4c081175e13ed336d7b878be46ba3..73033219b395be59a3137eece00cc0ff114adb62 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -31,5 +31,5 @@ Mypy:
   - ". ./prepare-and-run-mypy.sh"
   tags:
   - python3.5
-  only:
-  - master
+  except:
+  - tags