diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d410a0d..fa5a597 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -23,7 +23,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
         with:
           ref: ${{ github.event.pull_request.head.sha || github.ref }}
           repository: ${{ github.event.pull_request.head.repo.full_name || github.repository }}
@@ -56,7 +56,7 @@ jobs:
           - id: pytest
             run: uv run pytest -v --tb=short
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
         with:
           ref: ${{ github.event.pull_request.head.sha || github.ref }}
           repository: ${{ github.event.pull_request.head.repo.full_name || github.repository }}