diff --git a/.github/workflows/peribolos.yaml b/.github/workflows/peribolos.yaml
index d0041b7..59efb58 100644
--- a/.github/workflows/peribolos.yaml
+++ b/.github/workflows/peribolos.yaml
@@ -10,6 +10,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
       - name: Run peribolos
         run: ./peribolos.sh ${{ secrets.PERIBOLOS_TOKEN }}