diff --git a/README.md b/README.md
index dc0c78b..aaab02c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ This python script is intended to be used to automatically generate use case / c
 
 ## Requirements
 
-This tool requires lxml (https://github.com/lxml/lxml).
+This tool requires Python 3 and lxml (https://github.com/lxml/lxml).
 On Debian you can install it with "sudo apt-get install python3-lxml"
 
 ## Usage