diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e8e960492..c98a573dc 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -66,7 +66,7 @@ jobs:
         poetry run poetry check
         poetry run pip check
         poetry run safety check --full-report
-        poetry run slotscheck returns --verbose
+        poetry run python -m slotscheck returns --verbose
         # We do this to speed up the build:
         poetry run pytest typesafety -p no:cov -o addopts="" --mypy-ini-file=setup.cfg