diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index d6bfe26ce..d9eba338d 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -22,7 +22,7 @@ jobs:
   sphinx:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.0
       - name: Set up Python
         uses: actions/setup-python@v6.0.0
         with:
@@ -37,7 +37,7 @@ jobs:
   twine-check:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.0
       - name: Set up Python
         uses: actions/setup-python@v6.0.0
         with:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index c097b8d30..30dc1e6ce 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -22,7 +22,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.0
         with:
           fetch-depth: 0
       - uses: actions/setup-python@v6.0.0
diff --git a/.github/workflows/pre_commit.yml b/.github/workflows/pre_commit.yml
index 52b5fba96..bf29fd478 100644
--- a/.github/workflows/pre_commit.yml
+++ b/.github/workflows/pre_commit.yml
@@ -29,7 +29,7 @@ jobs:
   pre_commit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.0
       - uses: actions/setup-python@v6.0.0
         with:
           python-version: "3.14"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7b219c218..413bdae23 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,7 +14,7 @@ jobs:
       id-token: write
     environment: pypi.org
     steps:
-    - uses: actions/checkout@v5.0.1
+    - uses: actions/checkout@v6.0.0
       with:
         fetch-depth: 0
         token: ${{ secrets.RELEASE_GITHUB_TOKEN }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2ae02db98..78ebbd626 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -46,7 +46,7 @@ jobs:
               version: "3.14"
               toxenv: py314,smoke
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.0
       - name: Set up Python ${{ matrix.python.version }}
         uses: actions/setup-python@v6.0.0
         with:
@@ -65,7 +65,7 @@ jobs:
       matrix:
         toxenv: [api_func_v4, cli_func_v4]
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.0
       - name: Set up Python
         uses: actions/setup-python@v6.0.0
         with:
@@ -87,7 +87,7 @@ jobs:
   coverage:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v5.0.1
+      - uses: actions/checkout@v6.0.0
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6.0.0
         with:
@@ -111,7 +111,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Python wheel
     steps:
-    - uses: actions/checkout@v5.0.1
+    - uses: actions/checkout@v6.0.0
     - uses: actions/setup-python@v6.0.0
       with:
         python-version: "3.14"
@@ -129,7 +129,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [dist]
     steps:
-    - uses: actions/checkout@v5.0.1
+    - uses: actions/checkout@v6.0.0
     - name: Set up Python
       uses: actions/setup-python@v6.0.0
       with: