diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 60efeb6..833b413 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -4,7 +4,7 @@ on: [push, pull_request]
 
 jobs:
   build:
-    runs-on: [macos-latest]
+    runs-on: [ubuntu-20.04]
     strategy:
       matrix:
         python-version: ['3.8']