diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index c8b867bd..dae17580 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -19,4 +19,5 @@ jobs:
           files: "**/*.py"
 
       - uses: psf/black@stable
-        src: ${{ steps.changed-files.outputs.all_changed_files }}
+        with:
+          src: ${{ steps.changed-files.outputs.all_changed_files }}