fix CI

alex · web-flow · commit 9427a5aa3827 · 2022-12-07T15:17:00.000-05:00
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
         run: mypy --strict certifi
 
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         python-version:
