diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index faf2c4c..b9fc007 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,7 +10,7 @@ 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@v2.2.1
       with: