diff --git a/pyproject.toml b/pyproject.toml
index f136044..a45c84e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,6 +57,7 @@ addopts = [
     "--ruff",
     "--ruff-format",
     "--ignore-glob='*/models.py'",
+    "--W error",
 ]
 
 [tool.ruff]