{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}
-This is still supported thanks to **Pydantic**, as it has [internal support for `dataclasses`](https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel).
+This is still supported thanks to **Pydantic**, as it has [internal support for `dataclasses`](https://pydantic.dev/docs/validation/latest/concepts/dataclasses/#usage-of-stdlib-dataclasses-with-basemodel).
So, even with the code above that doesn't use Pydantic explicitly, FastAPI is using Pydantic to convert those standard dataclasses to Pydantic's own flavor of dataclasses.