diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index aa1737b..0d65f9c 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -49,4 +49,4 @@ jobs:
       - name: Install dependencies
         run: pdm install
       - name: Type check
-        run: mypy .
+        run: pdm run mypy .