diff --git a/README.md b/README.md
index 4ccfb6d..589b962 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,12 @@ Copy and paste [`python/`](./python/) directory, and you should be good to go!
 
 - **Run `python main.py` to start the program.**
 
+> It's recommended to use virtual environnement:
+>
+> - `virtualenv .` → create the virtual env in the current folder
+> - `activate` → activate the virtual env
+> - Now, it won't affect your other projects
+
 ## OCaml
 
 Copy and paste [`ocaml/`](./ocaml/) directory, and you should be good to go!