diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 97f712bb..0e569711 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-18.04, macos-10.15]
+        os: [ubuntu-20.04, macos-10.15]
         python-version: [py37, py38, py39, py310]
     steps:
     - uses: actions/checkout@v2