diff --git a/.github/workflows/python-code-style.yml b/.github/workflows/python-code-style.yml
index a33eae1..07ba59f 100644
--- a/.github/workflows/python-code-style.yml
+++ b/.github/workflows/python-code-style.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python 3.14
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/python-lint.yml b/.github/workflows/python-lint.yml
index 20cc816..ba6d4e1 100644
--- a/.github/workflows/python-lint.yml
+++ b/.github/workflows/python-lint.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python 3.14
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/python-quality.yml b/.github/workflows/python-quality.yml
index 9189b4c..9b96f5a 100644
--- a/.github/workflows/python-quality.yml
+++ b/.github/workflows/python-quality.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python 3.14
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index 8bd60d8..ce2dad3 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -23,7 +23,7 @@ jobs:
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.version }}
       uses: actions/setup-python@v6
       with:
@@ -45,7 +45,7 @@ jobs:
     permissions:
       issues: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Create label if not exists
         run: |
           gh label create scheduled-failure --force --color B60205
diff --git a/.github/workflows/python-typing.yml b/.github/workflows/python-typing.yml
index 2d82112..f6235d8 100644
--- a/.github/workflows/python-typing.yml
+++ b/.github/workflows/python-typing.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python 3.14
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index bab9d50..e67395b 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,7 +15,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python 3.14
         uses: actions/setup-python@v6
diff --git a/.github/workflows/reusable-github-pages.yml b/.github/workflows/reusable-github-pages.yml
index d71f382..03332e2 100644
--- a/.github/workflows/reusable-github-pages.yml
+++ b/.github/workflows/reusable-github-pages.yml
@@ -37,7 +37,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python 3.14
         uses: actions/setup-python@v6