diff --git a/tox.ini b/tox.ini
index 2cfbeae1..c8931fd6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -67,7 +67,9 @@ uv_resolution =
   min: lowest-direct
 
 commands =
-  pytest --durations=20 --durations-min=1.0 --cov-report term-missing {posargs:-n auto}
+  pytest --durations=20 --durations-min=1.0 --cov-report term-missing \
+  !min: -Werror \
+  {posargs:-n auto}
 
 [testenv:style]
 description = Check our style guide