diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6279c0f47..c1cb76d89 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
   linux_tests:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     if: "!contains(github.event.head_commit.message, '[skip ci]') && !contains(github.event.head_commit.message, '[ci skip]')"
 
     strategy: