diff --git a/.github/workflows/autopush.yml b/.github/workflows/autopush.yml
index e1dfec1..4692808 100644
--- a/.github/workflows/autopush.yml
+++ b/.github/workflows/autopush.yml
@@ -10,7 +10,7 @@ jobs:
         if: startsWith(github.repository, 'inducer/')
         runs-on: ubuntu-latest
         steps:
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
         -   run: |
                 curl -L -O https://tiker.net/ci-support-v0
                 . ./ci-support-v0
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ee67328..43de258 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
         name: Ruff
         runs-on: ubuntu-latest
         steps:
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
             with:
                 submodules: true
         -   uses: actions/setup-python@v6
@@ -32,7 +32,7 @@ jobs:
             matrix:
                 python-version: ['3.10', '3.12', '3.x']
         steps:
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
         -
             uses: actions/setup-python@v6
             with:
@@ -49,7 +49,7 @@ jobs:
         name: Pytest on macOS
         runs-on: macos-latest
         steps:
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
         -
             uses: actions/setup-python@v6
             with:
@@ -67,7 +67,7 @@ jobs:
         name: Documentation
         runs-on: ubuntu-latest
         steps:
-        -   uses: actions/checkout@v5
+        -   uses: actions/checkout@v6
         -
             uses: actions/setup-python@v6
             with:
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 23b5ec8..b688aef 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -16,7 +16,7 @@ jobs:
     name: Build source distribution
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           submodules: true
 
@@ -38,7 +38,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Build wheels
         uses: pypa/cibuildwheel@v3.2.1
@@ -59,7 +59,7 @@ jobs:
     name: Deploy
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: download artifacts
         uses: actions/download-artifact@v6
         with: