diff --git a/tests/conftest.py b/tests/conftest.py
index 360638d8..ecc90ce4 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -61,6 +61,4 @@ def clean_up_external_repos(repos):
     # clean up the external repo
     for repository in repos.values():
         if repository.local_path.exists():
-            shutil.rmtree(
-                repository.local_path, onerror=remove_readonly, ignore_errors=True
-            )
+            shutil.rmtree(repository.local_path, onerror=remove_readonly)