diff --git a/stdlib/3/unittest/mock.pyi b/stdlib/3/unittest/mock.pyi
index 9df57a9ec..0d2cd387b 100644
--- a/stdlib/3/unittest/mock.pyi
+++ b/stdlib/3/unittest/mock.pyi
@@ -123,7 +123,7 @@ class CallableMixin(Base):
     def __init__(self, spec: Optional[Any] = ..., side_effect: Optional[Any] = ..., return_value: Any = ..., wraps: Optional[Any] = ..., name: Optional[Any] = ..., spec_set: Optional[Any] = ..., parent: Optional[Any] = ..., _spec_state: Optional[Any] = ..., _new_name: Any = ..., _new_parent: Optional[Any] = ..., **kwargs: Any) -> None: ...
     def __call__(_mock_self, *args: Any, **kwargs: Any) -> Any: ...
 
-class Mock(NonCallableMock, CallableMixin): ...
+class Mock(CallableMixin, NonCallableMock): ...
 
 class _patch:
     attribute_name: Any
diff --git a/third_party/2and3/mock.pyi b/third_party/2and3/mock.pyi
index 9df57a9ec..0d2cd387b 100644
--- a/third_party/2and3/mock.pyi
+++ b/third_party/2and3/mock.pyi
@@ -123,7 +123,7 @@ class CallableMixin(Base):
     def __init__(self, spec: Optional[Any] = ..., side_effect: Optional[Any] = ..., return_value: Any = ..., wraps: Optional[Any] = ..., name: Optional[Any] = ..., spec_set: Optional[Any] = ..., parent: Optional[Any] = ..., _spec_state: Optional[Any] = ..., _new_name: Any = ..., _new_parent: Optional[Any] = ..., **kwargs: Any) -> None: ...
     def __call__(_mock_self, *args: Any, **kwargs: Any) -> Any: ...
 
-class Mock(NonCallableMock, CallableMixin): ...
+class Mock(CallableMixin, NonCallableMock): ...
 
 class _patch:
     attribute_name: Any