diff --git a/RLLib_training/README.md b/RLLib_training/README.md
index 1a7e5b82c7384c2924fc8ac738b4eace17043c19..b21e0a45eb82bdb64a4d3d62b8390e41d4e62685 100644
--- a/RLLib_training/README.md
+++ b/RLLib_training/README.md
@@ -3,9 +3,10 @@ This repository allows to run Rail Environment multi agent training with the RLL
 ## Installation:
 ```sh
 pip install gym
-pip install ray
+pip install ray==0.7.0
 pip install gin-config
 pip install opencv-python
+pip install lz4
 ```
 
 To start a training with different parameters, you can create a folder containing a config.gin file (see example in `experiment_configs/config_example/config.gin`.