diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e9f6983..3a27d43 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: build and test
       run: ./build_and_test.sh
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: auto-merge
         if: |
           github.actor == 'dependabot[bot]' &&