diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a9b6878..bd5b32f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -100,17 +100,18 @@ jobs:
         python3_6-django2_0-tests, python3_8-django2_2-tests, python3_9-django3_2-tests
     ]
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-    runs-on: ubuntu-latest
+    # Python 3.9 has no build for ubuntu-latest (26.04)
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python 3.9
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v5
         with:
-          python-version: 3.9
+          python-version: "3.9"
       - name: Build source tarball
         run: python setup.py sdist
       - name: Publish package
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           user: __token__
           password: ${{secrets.pypi_api_token}}