diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 583f0eb..b0fa81e 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [check, unit-test]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: docker/login-action@v2
         with:
           registry: ghcr.io
@@ -55,7 +55,7 @@ jobs:
     needs: [check, unit-test]
     steps:
       - run: echo "VERSION=${GITHUB_REF#refs/*/}" >> ${GITHUB_ENV} # Sets VERSION env var.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: docker/login-action@v2
         with:
           registry: ghcr.io