diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 67d0eea..1ff20b2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,5 +14,11 @@ jobs:
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
           python-version: '3.12'
+      # https://github.com/rhysd/actionlint/blob/v1.7.12/docs/usage.md#use-actionlint-on-github-actions
+      - name: actionlint
+        run: |
+          bash <(curl -s https://raw.githubusercontent.com/rhysd/actionlint/v1.7.12/scripts/download-actionlint.bash)
+          ./actionlint -color
+        shell: bash
       - run: make pip
       - run: make test