diff --git a/.github/workflows/pdoc.yml b/.github/workflows/pdoc.yml
index 43c4ec556..821ad45ec 100644
--- a/.github/workflows/pdoc.yml
+++ b/.github/workflows/pdoc.yml
@@ -19,7 +19,7 @@ jobs:
         platform: [ ubuntu-latest, macos-latest, windows-latest ]
     runs-on: ${{ matrix.platform }}
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
         with:
           submodules: recursive
           persist-credentials: false
diff --git a/.github/workflows/precommit.yml b/.github/workflows/precommit.yml
index a90de0fd4..14d7efe35 100644
--- a/.github/workflows/precommit.yml
+++ b/.github/workflows/precommit.yml
@@ -21,7 +21,7 @@ jobs:
   precommit:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
       - uses: actions/setup-python@v6.2.0
         with:
           python-version: "3.10"
@@ -36,7 +36,7 @@ jobs:
   devops:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
         with:
           submodules: recursive
           fetch-depth: 0  # https://github.com/pypa/setuptools_scm/issues/480
diff --git a/.github/workflows/pypi.yml b/.github/workflows/pypi.yml
index c2d712863..7418e7f4a 100644
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -22,7 +22,7 @@ jobs:
       fail-fast: false
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
         with:
           submodules: recursive
           fetch-depth: 0  # https://github.com/pypa/setuptools_scm/issues/480
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 86b51e871..df87aa2c2 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -29,7 +29,7 @@ jobs:
         python-version: [ "3.10", "3.12" ]
     runs-on: ${{ matrix.platform }}
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
         with:
           submodules: recursive
           fetch-depth: 0
@@ -48,7 +48,7 @@ jobs:
             python-version: "3.10"
     runs-on: ${{ matrix.platform }}
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
         with:
           submodules: recursive
           fetch-depth: 0
@@ -65,7 +65,7 @@ jobs:
         python-version: ["3.10"]
     runs-on: ${{ matrix.platform }}
     steps:
-    - uses: actions/checkout@v4.1.6
+    - uses: actions/checkout@v6.0.2
       with:
         submodules: recursive
         fetch-depth: 0
@@ -95,7 +95,7 @@ jobs:
       NUMBA_DISABLE_JIT: 1
       PYTHON: ${{ matrix.python-version }}
     steps:
-    - uses: actions/checkout@v4.1.6
+    - uses: actions/checkout@v6.0.2
       with:
         submodules: recursive
         fetch-depth: 0
@@ -128,7 +128,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     timeout-minutes: ${{ startsWith(matrix.platform, 'ubuntu-') && 30 || 40 }}
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
         with:
           submodules: recursive
           fetch-depth: 0
@@ -187,7 +187,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     timeout-minutes: ${{ startsWith(matrix.platform, 'windows-') && 35 || 22 }}
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
         with:
           submodules: recursive
           fetch-depth: 0
@@ -248,7 +248,7 @@ jobs:
           echo "ENV:"
           printf '%s\n' "${{ toJson(env) }}"
           echo "anim_test-suite=${{ env.anim_test_suite }}, anim_python-version=${{ env.anim_python_version }}"
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
         with:
           submodules: recursive
           fetch-depth: 0
diff --git a/.github/workflows/tutorial_code.yml b/.github/workflows/tutorial_code.yml
index 39d083c88..528446978 100644
--- a/.github/workflows/tutorial_code.yml
+++ b/.github/workflows/tutorial_code.yml
@@ -19,7 +19,7 @@ jobs:
         platform: [ubuntu-latest, macos-15-intel, macos-14, windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
       - uses: actions/setup-python@v6.2.0
         with:
           python-version: "3.10"
@@ -44,7 +44,7 @@ jobs:
   julia:
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
       - uses: actions/setup-python@v6.2.0
         with:
           python-version: "3.10"
@@ -61,7 +61,7 @@ jobs:
   matlab:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
       - uses: actions/setup-python@v6.2.0
         with:
           python-version: "3.12"
diff --git a/.github/workflows/urlcheck.yml b/.github/workflows/urlcheck.yml
index f990bffc6..29c429495 100644
--- a/.github/workflows/urlcheck.yml
+++ b/.github/workflows/urlcheck.yml
@@ -12,7 +12,7 @@ jobs:
   url-check:
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4.1.6
+      - uses: actions/checkout@v6.0.2
       - name: URLs-checker
         id: urlcheck
         uses: urlstechie/urlchecker-action@master