diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index aa2ae06..67f4489 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -19,7 +19,7 @@ jobs:
         python-version: [3.7, 3.8, 3.9, "3.10"]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2.5.0
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4.3.0
       with: