diff --git a/.github/workflows/black.yml b/.github/workflows/black.yml
index 81ce51a..870cb42 100644
--- a/.github/workflows/black.yml
+++ b/.github/workflows/black.yml
@@ -6,5 +6,5 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: psf/black@stable
diff --git a/.github/workflows/cppcheck.yml b/.github/workflows/cppcheck.yml
index c176a74..10b1e84 100644
--- a/.github/workflows/cppcheck.yml
+++ b/.github/workflows/cppcheck.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install deps
         run: |
diff --git a/.github/workflows/macos_test.yml b/.github/workflows/macos_test.yml
index 4296bd5..fe031ae 100644
--- a/.github/workflows/macos_test.yml
+++ b/.github/workflows/macos_test.yml
@@ -14,7 +14,7 @@ jobs:
       matrix:
         python-version: [3.8, 3.9, '3.10', 3.11, 3.12]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Python
         uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/ubuntu_test.yml b/.github/workflows/ubuntu_test.yml
index 595aca3..b31cea5 100644
--- a/.github/workflows/ubuntu_test.yml
+++ b/.github/workflows/ubuntu_test.yml
@@ -15,7 +15,7 @@ jobs:
       matrix:
         python-version: [3.8, 3.9, '3.10', 3.11, 3.12]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Python
         uses: actions/setup-python@v5
         with:
diff --git a/.github/workflows/windows_test.yml b/.github/workflows/windows_test.yml
index f5d2e5c..c8afb58 100644
--- a/.github/workflows/windows_test.yml
+++ b/.github/workflows/windows_test.yml
@@ -14,7 +14,7 @@ jobs:
       matrix:
         python-version: [3.8, 3.9, '3.10', 3.11, 3.12]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install packages
         run: |
           py -${{ matrix.python-version }} -m pip install --upgrade pip