diff --git a/stubs/Markdown/markdown/util.pyi b/stubs/Markdown/markdown/util.pyi
index c9c0e1fd6..a8fb724d2 100644
--- a/stubs/Markdown/markdown/util.pyi
+++ b/stubs/Markdown/markdown/util.pyi
@@ -15,7 +15,7 @@ TAG_PLACEHOLDER: Any
 INSTALLED_EXTENSIONS: Any
 RTL_BIDI_RANGES: Any
 
-def deprecated(message, stacklevel: int = ...): ...
+def deprecated(message: str, stacklevel: int = ...): ...
 def isBlockLevel(tag): ...
 def parseBoolValue(value, fail_on_errors: bool = ..., preserve_none: bool = ...): ...
 def code_escape(text): ...