diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index bed5d2e0..382f2372 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,7 @@ jobs:
     container:
       image: ghcr.io/igaw/linux-nvme/debian:latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: '3.x'
@@ -43,7 +43,7 @@ jobs:
           - arch: s390x
           - arch: ppc64le
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: enable foreign arch
         uses: dbhi/qus/action@main
       - name: compile and run unit tests
@@ -70,7 +70,7 @@ jobs:
     container:
       image: ghcr.io/igaw/linux-nvme/debian:latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: '3.x'
@@ -92,7 +92,7 @@ jobs:
       image: ghcr.io/igaw/linux-nvme/debian:latest
     if: github.ref == 'refs/heads/master'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: '3.x'
@@ -112,7 +112,7 @@ jobs:
     container:
       image: ghcr.io/igaw/linux-nvme/debian:latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: build
         run: |
           scripts/build.sh -m muon
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 37cd8436..39ea739a 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -12,7 +12,7 @@ jobs:
     container:
       image: ghcr.io/igaw/linux-nvme/debian.python:latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: build
         run: |
           scripts/build.sh coverage
diff --git a/.github/workflows/release-python.yml b/.github/workflows/release-python.yml
index b9158f72..d30aacc5 100644
--- a/.github/workflows/release-python.yml
+++ b/.github/workflows/release-python.yml
@@ -18,7 +18,7 @@ jobs:
     container:
       image: ghcr.io/igaw/linux-nvme/debian.python:latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Allow workspace
         run: git config --global --add safe.directory "$GITHUB_WORKSPACE"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6ca27417..63bb5e11 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,7 +14,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ncipollo/release-action@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}