diff --git a/setup.cfg b/setup.cfg
index a66e1fd12..5aab53b12 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -18,9 +18,9 @@ disallow_any_generics = False
 disallow_any_unimported = False
 disallow_incomplete_defs = True
 disallow_subclassing_any = True
-disallow_untyped_calls = False
+disallow_untyped_calls = True
 disallow_untyped_decorators = False
-disallow_untyped_defs = False
+disallow_untyped_defs = True
 ignore_errors = False
 ignore_missing_imports = True
 no_implicit_optional = True
@@ -30,7 +30,7 @@ show_error_codes = True
 strict_equality = True
 strict_optional = True
 warn_redundant_casts = True
-warn_return_any = False
+warn_return_any = True
 warn_unreachable = True
 warn_unused_configs = True
 warn_unused_ignores = False