diff --git a/README.md b/README.md
index dd3e66a..35b18a3 100644
--- a/README.md
+++ b/README.md
@@ -455,6 +455,7 @@ _Libraries for data analysis._
   - [pandas](https://github.com/pandas-dev/pandas) - A library providing high-performance, easy-to-use data structures and data analysis tools.
   - [pathway](https://github.com/pathwaycom/pathway) - Real-time data processing framework for Python with reactive dataflows.
   - [polars](https://github.com/pola-rs/polars) - A fast DataFrame library implemented in Rust with a Python API.
+  - [gridoptim](https://github.com/Halfblood-Prince/gridoptim) - Fast parallel grid search optimizer for Python.
 - Financial Data
   - [akshare](https://github.com/akfamily/akshare) - A financial data interface library, built for human beings!
   - [edgartools](https://github.com/dgunning/edgartools) - Library for downloading structured data from SEC EDGAR filings and XBRL financial statements.