diff --git a/graphene/types/inputobjecttype.py b/graphene/types/inputobjecttype.py
index e49d75f6..c46ef830 100644
--- a/graphene/types/inputobjecttype.py
+++ b/graphene/types/inputobjecttype.py
@@ -11,12 +11,12 @@ if MYPY:
     from typing import Dict, Callable  # NOQA
 
 
-class InputObjectTypeOptions(BaseOptions):
+class InputObjectTypeOptions(BaseOptions):  # type: ignore
     fields = None  # type: Dict[str, InputField]
     container = None  # type: InputObjectTypeContainer
 
 
-class InputObjectTypeContainer(dict, BaseType):
+class InputObjectTypeContainer(dict, BaseType):  # type: ignore
     class Meta:
         abstract = True