diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 162af3f..9da9020 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,7 @@ jobs:
         python-version: [3.8]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3.1.0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v2.1.3
         with: