diff --git a/pyproject.toml b/pyproject.toml
index 95e6145cc172..a6bc291b950a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -102,6 +102,7 @@ filterwarnings = [
     'ignore::warehouse.admin.services.InsecureStorageWarning',
     'ignore::warehouse.utils.exceptions.InsecureOIDCPublisherWarning',
     'ignore::warehouse.packaging.services.InsecureStorageWarning',
+    'error:SELECT statement has a cartesian product:sqlalchemy.exc.SAWarning',
 ]
 
 [tool.pip-tools.compile]