diff --git a/stdlib/shutil.pyi b/stdlib/shutil.pyi
index 67a81e60f..ceda73b3a 100644
--- a/stdlib/shutil.pyi
+++ b/stdlib/shutil.pyi
@@ -101,11 +101,13 @@ def make_archive(
     logger: Any | None = ...,
 ) -> str: ...
 def get_archive_formats() -> list[tuple[str, str]]: ...
+@overload
 def register_archive_format(
-    name: str,
-    function: Callable[..., Any],
-    extra_args: Sequence[tuple[str, Any] | list[Any]] | None = ...,
-    description: str = ...,
+    name: str, function: Callable[..., object], extra_args: Sequence[tuple[str, Any] | list[Any]], description: str = ...
+) -> None: ...
+@overload
+def register_archive_format(
+    name: str, function: Callable[[str, str], object], extra_args: None = ..., description: str = ...
 ) -> None: ...
 def unregister_archive_format(name: str) -> None: ...
 
@@ -116,8 +118,17 @@ else:
     # See http://bugs.python.org/issue30218
     def unpack_archive(filename: str, extract_dir: StrPath | None = ..., format: str | None = ...) -> None: ...
 
+@overload
 def register_unpack_format(
-    name: str, extensions: list[str], function: Any, extra_args: Sequence[tuple[str, Any]] | None = ..., description: str = ...
+    name: str,
+    extensions: list[str],
+    function: Callable[..., object],
+    extra_args: Sequence[tuple[str, Any]],
+    description: str = ...,
+) -> None: ...
+@overload
+def register_unpack_format(
+    name: str, extensions: list[str], function: Callable[[str, str], object], extra_args: None = ..., description: str = ...
 ) -> None: ...
 def unregister_unpack_format(name: str) -> None: ...
 def get_unpack_formats() -> list[tuple[str, list[str], str]]: ...