diff --git a/stubs/babel/babel/messages/catalog.pyi b/stubs/babel/babel/messages/catalog.pyi
index c159a8435..e9a6a8adc 100644
--- a/stubs/babel/babel/messages/catalog.pyi
+++ b/stubs/babel/babel/messages/catalog.pyi
@@ -29,6 +29,7 @@ class Message:
     def __le__(self, other): ...
     def __eq__(self, other): ...
     def __ne__(self, other): ...
+    def is_identical(self, other: Message) -> bool: ...
     def clone(self): ...
     def check(self, catalog: Any | None = ...): ...
     @property
@@ -104,3 +105,4 @@ class Catalog:
     def update(
         self, template, no_fuzzy_matching: bool = ..., update_header_comment: bool = ..., keep_user_comments: bool = ...
     ) -> None: ...
+    def is_identical(self, other: Catalog) -> bool: ...