diff --git a/stdlib/shutil.pyi b/stdlib/shutil.pyi
index cfcfad374b20..3052723adeaa 100644
--- a/stdlib/shutil.pyi
+++ b/stdlib/shutil.pyi
@@ -103,11 +103,11 @@ def register_archive_format(
 def unregister_archive_format(name: str) -> None: ...
 
 if sys.version_info >= (3, 7):
-    def unpack_archive(filename: StrPath, extract_dir: StrPath | None = ..., format: str | None = ...) -> None: ...
+    def unpack_archive(filename: StrOrBytesPath, extract_dir: StrPath | None = ..., format: str | None = ...) -> None: ...
 
 else:
     # See http://bugs.python.org/issue30218
-    def unpack_archive(filename: str, extract_dir: StrPath | None = ..., format: str | None = ...) -> None: ...
+    def unpack_archive(filename: str | bytes, extract_dir: StrPath | None = ..., format: str | None = ...) -> None: ...
 
 def register_unpack_format(
     name: str, extensions: list[str], function: Any, extra_args: Sequence[tuple[str, Any]] | None = ..., description: str = ...