diff --git a/tox.ini b/tox.ini
index 5909f007c..4fb83408e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -301,7 +301,7 @@ no_default_groups = true
 [testenv:type]
 description = run type check on code base
 commands =
-    ty check src --error unused-ignore-comment
+    ty check src --error unused-ignore-comment --error redundant-cast --error possibly-missing-attribute
 dependency_groups = type
 
 [testenv:docs]