diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index af13632..b410427 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
           # diff-cover needs origin/main; hatch-vcs needs full history + tags for the version
           fetch-depth: 0
           fetch-tags: true
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with: { python-version: '${{ matrix.python }}' }
       - run: pip install uv
       - run: uv sync --all-extras
@@ -43,7 +43,7 @@ jobs:
           # checkout would build a bogus low version (e.g. 0.1.dev1).
           fetch-depth: 0
           fetch-tags: true
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with: { python-version: '3.12' }
       - run: pip install build
       - run: python -m build
diff --git a/.github/workflows/promote-prod.yml b/.github/workflows/promote-prod.yml
index 2aa46d0..8719e1b 100644
--- a/.github/workflows/promote-prod.yml
+++ b/.github/workflows/promote-prod.yml
@@ -277,7 +277,7 @@ jobs:
           ref: refs/tags/${{ needs.resolve.outputs.tag }}
           fetch-depth: 0
           fetch-tags: true
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with: { python-version: '3.12' }
       - run: pip install build twine trove-classifiers check-wheel-contents pytest
       - run: python -m build
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 1bfcf38..a2e4497 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -57,7 +57,7 @@ jobs:
           ref: refs/tags/${{ github.event.inputs.tag }}
           fetch-depth: 0
           fetch-tags: true
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with: { python-version: '3.12' }
       - run: pip install build twine trove-classifiers check-wheel-contents pytest
       - run: python -m build
@@ -119,7 +119,7 @@ jobs:
     needs: [build, test-pypi]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v7
         with: { python-version: '3.12' }
       - name: Install just-published version from TestPyPI (tolerate index propagation lag)
         env: