diff --git a/README.md b/README.md
index 40c14308..d2343136 100644
--- a/README.md
+++ b/README.md
@@ -222,6 +222,8 @@ _Libraries for Machine Learning. Also see [awesome-machine-learning](https://git
   - [statsforecast](https://github.com/Nixtla/statsforecast) - Fast statistical forecasting models such as ARIMA, ETS, and Theta, compiled with numba.
   - [sktime](https://github.com/sktime/sktime) - A unified scikit-learn-style framework for forecasting and other time-series learning tasks.
   - [timesfm](https://github.com/google-research/timesfm) - A pretrained foundation model from Google Research for time-series forecasting, with non-commercial default weights.
+- Hyperparameter Optimization
+  - [optuna](https://github.com/optuna/optuna) - A hyperparameter optimization framework with define-by-run search spaces and pruning of unpromising trials.
 
 ### Natural Language Processing