diff --git a/sw/README.md b/sw/README.md
index 3f2111b..bd6f18e 100644
--- a/sw/README.md
+++ b/sw/README.md
@@ -2,6 +2,9 @@
 
 ## Software
 
+Warning: At least a `Python 3.9` or higher is required to properly run the
+scripts in this project
+
 ### Create a python virtual environment
 
 In the root directory of this repository run