diff --git a/stubs/assertpy/assertpy/exception.pyi b/stubs/assertpy/assertpy/exception.pyi
index 2af5e46ba..b1eb47da6 100644
--- a/stubs/assertpy/assertpy/exception.pyi
+++ b/stubs/assertpy/assertpy/exception.pyi
@@ -5,4 +5,5 @@ __tracebackhide__: bool
 
 class ExceptionMixin:
     def raises(self, ex: type[BaseException] | BaseException) -> Self: ...
-    def when_called_with(self, *some_args: Any, **some_kwargs: dict[str, Any]) -> Self: ...
+    # The types of some_args and some_kwargs must equal the types of the called function.
+    def when_called_with(self, *some_args: Any, **some_kwargs: Any) -> Self: ...