diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index ee2afac..3623d30 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -4,7 +4,7 @@ on: [push, pull_request]
 
 jobs:
   test:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-20.04
     strategy:      
       max-parallel: 4
       matrix: