diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 0f655082..06e6b16c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -12,7 +12,7 @@ on:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
+  cancel-in-progress: ${{ github.ref != github.event.repository.default_branch }}
 
 jobs:
   build_docs: