diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e59ec5c..1f290e2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,7 +5,7 @@ jobs:
   yaml-checks:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
       - uses: actions/setup-node@v2-beta
         with:
           node-version: 17.3.0