diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 53768b91..a0ecb770 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -9,7 +9,7 @@ on:
 
 jobs:
   deploy:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python
@@ -26,4 +26,4 @@ jobs:
           TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
         run: |
           python setup.py sdist bdist_wheel
-          twine upload --skip-existing dist/*
\ No newline at end of file
+          twine upload --skip-existing dist/*