diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ba2252c..47c5692 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
     strategy:
       fail-fast: false
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-go@v5
@@ -39,7 +39,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
       # Minimum supported python here.
     - run: echo 'UV_PYTHON=3.9' | tee -a "${GITHUB_ENV}"
@@ -72,7 +72,7 @@ jobs:
     strategy:
       fail-fast: false
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-go@v5
@@ -88,7 +88,7 @@ jobs:
     strategy:
       fail-fast: false
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-go@v5
@@ -103,7 +103,7 @@ jobs:
     strategy:
       fail-fast: false
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-go@v5
@@ -120,7 +120,7 @@ jobs:
     strategy:
       fail-fast: false
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: astral-sh/setup-uv@v6
@@ -133,7 +133,7 @@ jobs:
     strategy:
       fail-fast: false
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: astral-sh/setup-uv@v6
@@ -147,7 +147,7 @@ jobs:
     name: Build & verify python package
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: hynek/build-and-inspect-python-package@v2
@@ -165,7 +165,7 @@ jobs:
         python-version: ${{ fromJson(needs.build-python.outputs.python-versions) }}
     steps:
       - run: echo 'UV_PYTHON=${{ matrix.python-version }}' | tee -a "${GITHUB_ENV}"
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: astral-sh/setup-uv@v6
@@ -181,7 +181,7 @@ jobs:
         python-version: ${{ fromJson(needs.build-python.outputs.python-versions) }}
     steps:
       - run: echo 'UV_PYTHON=${{ matrix.python-version }}' | tee -a "${GITHUB_ENV}"
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: astral-sh/setup-uv@v6
@@ -201,7 +201,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: astral-sh/setup-uv@v6