diff --git a/.github/workflows/macos_build.yml b/.github/workflows/macos_build.yml
index 39f879f6..543b46d9 100644
--- a/.github/workflows/macos_build.yml
+++ b/.github/workflows/macos_build.yml
@@ -17,7 +17,7 @@ jobs:
           - "3.13"
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       # Normally, we would use the superbly maintained...
       # - uses: actions/setup-python@v2
       #   with:
diff --git a/.github/workflows/modified_scripts_build.yml b/.github/workflows/modified_scripts_build.yml
index e8367cd9..ffbf0ba7 100644
--- a/.github/workflows/modified_scripts_build.yml
+++ b/.github/workflows/modified_scripts_build.yml
@@ -7,7 +7,7 @@ jobs:
       versions: ${{steps.modified-versions.outputs.versions}}
       versions_cpython_only: ${{steps.modified-versions.outputs.versions_cpython_only}}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: git fetch origin "$GITHUB_BASE_REF"
       - shell: bash
         run: >
@@ -40,7 +40,7 @@ jobs:
         os: ["macos-14", "macos-15", "macos-15-intel"]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: |
           #envvars
           export PYENV_ROOT="$GITHUB_WORKSPACE"
@@ -101,7 +101,7 @@ jobs:
         os: ["macos-14", "macos-15", "macos-15-intel"]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: |
           #envvars
           export PYENV_ROOT="$GITHUB_WORKSPACE"
@@ -163,7 +163,7 @@ jobs:
         os: ["ubuntu-22.04", "ubuntu-24.04"]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: |
           #envvars
           export PYENV_ROOT="$GITHUB_WORKSPACE"
@@ -222,7 +222,7 @@ jobs:
         os: ["ubuntu-latest"]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: |
           #envvars
           export PYENV_ROOT="$GITHUB_WORKSPACE"
diff --git a/.github/workflows/pyenv_tests.yml b/.github/workflows/pyenv_tests.yml
index 90972858..32694106 100644
--- a/.github/workflows/pyenv_tests.yml
+++ b/.github/workflows/pyenv_tests.yml
@@ -16,7 +16,7 @@ jobs:
           - macos-14
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       # Normally, we would use the superbly maintained...
       # - uses: actions/setup-python@v2
       #   with:
diff --git a/.github/workflows/ubuntu_build.yml b/.github/workflows/ubuntu_build.yml
index ad3542eb..99bf5fc6 100644
--- a/.github/workflows/ubuntu_build.yml
+++ b/.github/workflows/ubuntu_build.yml
@@ -17,7 +17,7 @@ jobs:
           - "3.13"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       # Normally, we would use the superbly maintained...
       # - uses: actions/setup-python@v2
       #   with: