diff --git a/tildes/mypy.ini b/tildes/mypy.ini
index d8c1e9c..0da2c5f 100644
--- a/tildes/mypy.ini
+++ b/tildes/mypy.ini
@@ -3,6 +3,8 @@ mypy_path = /opt/tildes/stubs/
 disallow_untyped_defs = true
 ignore_missing_imports = true
 no_implicit_optional = true
+warn_redundant_casts = true
+warn_unused_ignores = true
 
 [mypy-tests.*]
 disallow_untyped_defs = false