diff --git a/stdlib/typing.pyi b/stdlib/typing.pyi
index 901e00efb..580322b65 100644
--- a/stdlib/typing.pyi
+++ b/stdlib/typing.pyi
@@ -290,7 +290,7 @@ if sys.version_info >= (3, 10):
 
         def __or__(self, other: Any) -> _SpecialForm: ...
         def __ror__(self, other: Any) -> _SpecialForm: ...
-        __supertype__: type
+        __supertype__: type | NewType
 
 else:
     def NewType(name: str, tp: Any) -> Any: ...
diff --git a/stdlib/typing_extensions.pyi b/stdlib/typing_extensions.pyi
index 5bcfa5a08..48a398ba4 100644
--- a/stdlib/typing_extensions.pyi
+++ b/stdlib/typing_extensions.pyi
@@ -374,7 +374,7 @@ else:
     class NewType:
         def __init__(self, name: str, tp: Any) -> None: ...
         def __call__(self, obj: _T, /) -> _T: ...
-        __supertype__: type
+        __supertype__: type | NewType
         if sys.version_info >= (3, 10):
             def __or__(self, other: Any) -> _SpecialForm: ...
             def __ror__(self, other: Any) -> _SpecialForm: ...