diff --git a/django-stubs/core/exceptions.pyi b/django-stubs/core/exceptions.pyi
index e8f72e066..3ccd1399f 100644
--- a/django-stubs/core/exceptions.pyi
+++ b/django-stubs/core/exceptions.pyi
@@ -44,7 +44,7 @@ class ValidationError(Exception):
         params: Optional[Dict[str, Any]] = ...,
     ) -> None: ...
     @property
-    def message_dict(self) -> Optional[Dict[str, List[str]]]: ...
+    def message_dict(self) -> Dict[str, List[str]]: ...
     @property
     def messages(self) -> List[str]: ...
     def update_error_dict(self, error_dict: Dict[str, List[ValidationError]]) -> Dict[str, List[ValidationError]]: ...