diff --git a/builtins/2.7/__builtin__.pyi b/builtins/2.7/__builtin__.pyi
index cbb94f9..a3d0a80 100644
--- a/builtins/2.7/__builtin__.pyi
+++ b/builtins/2.7/__builtin__.pyi
@@ -521,8 +521,11 @@ class dict(MutableMapping[_KT, _VT], Generic[_KT, _VT]):
     def pop(self, k: _KT, default: _VT = ...) -> _VT: ...
     def popitem(self) -> Tuple[_KT, _VT]: ...
     def setdefault(self, k: _KT, default: _VT = ...) -> _VT: ...
+    @overload
     def update(self, m: Union[Mapping[_KT, _VT],
                               Iterable[Tuple[_KT, _VT]]]) -> None: ...
+    @overload
+    def update(self, **kwds: _VT) -> None: ...  # TODO: _KT must be str
     def keys(self) -> List[_KT]: ...
     def values(self) -> List[_VT]: ...
     def items(self) -> List[Tuple[_KT, _VT]]: ...
diff --git a/stdlib/2.7/collections.pyi b/stdlib/2.7/collections.pyi
index ab40403..05da6ea 100644
--- a/stdlib/2.7/collections.pyi
+++ b/stdlib/2.7/collections.pyi
@@ -68,9 +68,12 @@ class Counter(Dict[_T, int], Generic[_T]):
     # it's included so that the signature is compatible with
     # Dict.update. Not sure if we should use '# type: ignore' instead
     # and omit the type from the union.
+    @overload
     def update(self, m: Union[Mapping[_T, int],
                               Iterable[Tuple[_T, int]],
                               Iterable[_T]]) -> None: ...
+    @overload
+    def update(self, **kwds: int): ...  # TODO: _T must be str
 
 class OrderedDict(Dict[_KT, _VT], Generic[_KT, _VT]):
     def popitem(self, last: bool = ...) -> Tuple[_KT, _VT]: ...