diff --git a/tox.ini b/tox.ini
index b9d7efb..0bd0b0f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,3 +26,4 @@ filterwarnings =
   ignore:defusedxml.lxml is no longer supported.*
 markers =
   update_data
+junit_family=xunit2