diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a6b362e..b2d1bf5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
     name: Build on Linux using Apache Ant
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.4
+      - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab  # v3.5.2
 
       - name: Install dependencies
         run: |-