diff --git a/.github/workflows/format.yaml b/.github/workflows/format.yaml
index 2f32761..a33005e 100644
--- a/.github/workflows/format.yaml
+++ b/.github/workflows/format.yaml
@@ -11,7 +11,7 @@ jobs:
     name: black
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v5
       with:
         python-version: "3.x"
diff --git a/.github/workflows/pip.yaml b/.github/workflows/pip.yaml
index de717ae..04a2506 100644
--- a/.github/workflows/pip.yaml
+++ b/.github/workflows/pip.yaml
@@ -15,7 +15,7 @@ jobs:
         python-version: ["3.7", "3.11"]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
diff --git a/.github/workflows/wheels.yaml b/.github/workflows/wheels.yaml
index 25c559a..741fd44 100644
--- a/.github/workflows/wheels.yaml
+++ b/.github/workflows/wheels.yaml
@@ -14,7 +14,7 @@ jobs:
     name: Build SDist
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Build SDist
       run: pipx run build --sdist
     - name: Check metadata
@@ -32,7 +32,7 @@ jobs:
       matrix:
         os: [ubuntu-22.04, macos-13]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: pypa/cibuildwheel@v2.17
       env:
         MACOSX_DEPLOYMENT_TARGET: 10.15