diff --git a/README.md b/README.md
index 47e6b32a..c848ac62 100644
--- a/README.md
+++ b/README.md
@@ -281,6 +281,7 @@ _Libraries for building RESTful, GraphQL, and RPC APIs._
   - [django-modern-rest](https://github.com/wemake-services/django-modern-rest) - Modern REST with speed, types, async, `msgspec`, `pydantic` and other goodies!
 - Flask
   - [flask-restx](https://github.com/python-restx/flask-restx) - Fully featured framework for fast, easy and documented API development with Flask.
+  - [flask-smorest](https://github.com/marshmallow-code/flask-smorest) - A Flask/Marshmallow-based REST API framework with automatic OpenAPI documentation.
   - [apiflask](https://github.com/apiflask/apiflask) - A lightweight Python web API framework based on Flask, supporting marshmallow schemas and Pydantic models.
 - Framework Agnostic
   - [fastapi](https://github.com/fastapi/fastapi) - A modern, fast, web framework for building APIs with standard Python type hints.