diff --git a/builtins/3/_warnings.pyi b/builtins/3/_warnings.pyi
index 9f517538b..acf046031 100644
--- a/builtins/3/_warnings.pyi
+++ b/builtins/3/_warnings.pyi
@@ -1,12 +1,11 @@
-"""Stub file for the '_warnings' module."""
-# This is an autogenerated file. It serves as a starting point
-# for a more precise manual annotation of this module.
-# Feel free to edit the source below, but remove this header when you do.
+from typing import Any
 
-from typing import Any, List, Tuple, Dict, Generic
+_defaultaction = ...  # type: str
+_onceregistry = ...  # type: dict
+filters = ...  # type: List[tuple]
 
-def _filters_mutated() -> None: ...
-
-def warn(message, *args, **kwargs) -> None: ...
-
-def warn_explicit(message, category, filename: str, lineno: int, *args, **kwargs) -> None: ...
+def warn(message: Warning, category:type = ..., stacklevel:int = ...) -> None: ...
+def warn_explicit(message: Warning, category:type,
+                  filename: str, lineno: int,
+                  module:Any = ..., registry:dict = ...,
+                  module_globals:dict = ...) -> None: ...