diff --git a/setup.cfg b/setup.cfg
index 3d592ec9a32..5d73ec84689 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,7 @@
 [tool:pytest]
 testpaths = t/unit/
 python_classes = test_*
+xfail_strict=true
 
 [build_sphinx]
 source-dir = docs/