diff --git a/README.md b/README.md
index 72fb8b3fa7097ad8d70ca0eef91732057beca53d..c6ff41ea9d336fee39872530e3addab5ad3717ad 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ Those are the steps done by the helpers:
 
 * You don't need to use sudo in order to run those scripts, but some extra packages are needed:
 
-     `sudo apt-get install cdbs devscripts dpkg-dev git gnupg patch quilt rpl sed`
+     `sudo apt-get install cdbs devscripts dpkg-dev git gnupg patch quilt rpl sed python3-jsonschema python-pathlib`
 
 * Take care to use the right sourcePackageName, many source packages produce
 several binary packages. `apt-cache showsrc binary-package` can help you.