diff --git a/pydantic_apply/_compat.py b/pydantic_apply/_compat.py
index 7f2eaa5..ebf0779 100644
--- a/pydantic_apply/_compat.py
+++ b/pydantic_apply/_compat.py
@@ -38,7 +38,7 @@ def set_model_config_value(self, key: str, value: Any) -> None:
         def model_copy(self, **kwargs: Any) -> pydantic.BaseModel:
             return self.obj.copy(**kwargs)
 
-        def model_dump(self, **kwargs: Any) -> dict[str, Any]:
+        def model_dump(self, **kwargs: Any) -> Dict[str, Any]:
             return self.obj.dict(**kwargs)
 
 
@@ -72,5 +72,5 @@ def set_model_config_value(self, key: str, value: Any) -> None:
         def model_copy(self, **kwargs: Any) -> pydantic.BaseModel:
             return self.obj.model_copy(**kwargs)
 
-        def model_dump(self, **kwargs: Any) -> dict[str, Any]:
+        def model_dump(self, **kwargs: Any) -> Dict[str, Any]:
             return self.obj.model_dump(**kwargs)