diff --git a/.github/workflows/pypackage_check.yaml b/.github/workflows/pypackage_check.yaml
index 648f1a6..89d98ad 100644
--- a/.github/workflows/pypackage_check.yaml
+++ b/.github/workflows/pypackage_check.yaml
@@ -9,7 +9,7 @@ jobs:
   check_version:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: "3.10"
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 90c143f..c33d930 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -12,7 +12,7 @@ jobs:
     needs: [tests]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: "3.10"
diff --git a/.github/workflows/unit.yaml b/.github/workflows/unit.yaml
index af6c243..356e7c1 100644
--- a/.github/workflows/unit.yaml
+++ b/.github/workflows/unit.yaml
@@ -11,7 +11,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: "3.10"
@@ -20,7 +20,7 @@ jobs:
   mypy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: "3.10"
@@ -33,7 +33,7 @@ jobs:
     needs: [lint, mypy]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: "3.10"
@@ -56,7 +56,7 @@ jobs:
             python-version: "3.11"
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with: