diff --git a/README.md b/README.md
index ea0aa3ece44f867d1fdb0d720d3478c38a4a395e..a3bcbdc413aa88e447e32bbaee534471fc799dc6 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,8 @@ See also [developers documentation](DEVELOPERS.md) (in french)
 ### Requirements
 
  * [jalhyd](https://gitlab.irstea.fr/cassiopee/jalhyd)
- * nodejs
+ * npm
+ * python3
  
 Building the documentation requires MkDocs and some extensions: