diff --git a/scripts/restore b/scripts/restore
index 442b572..bbef000 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -66,7 +66,7 @@ ynh_restore_file "$final_path"
 # INSTALL DEPENDENCIES
 #=================================================
 
-ynh_install_app_dependencies libxslt-dev virtualenv python-pybabel zlib1g-dev libffi-dev libssl-dev python-lxml uwsgi uwsgi-plugin-python
+ynh_install_app_dependencies git build-essential libxslt-dev python-dev python-virtualenv virtualenv zlib1g-dev libffi-dev libssl-dev uwsgi uwsgi-plugin-python
 
 #=================================================
 # RECREATE OF THE DEDICATED USER
diff --git a/scripts/upgrade b/scripts/upgrade
index 701caac..ba72cc8 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -102,7 +102,6 @@ ynh_system_user_create $app
 # UPGRADE SEARX IN ITS VIRTUALENV
 #=================================================
 
-rm -r $final_path/lib/python2.7/site-packages/{pip,setuptools} $final_path/lib/python2.7/site-packages/setuptools-* $final_path/lib/python2.7/site-packages/pip-*
 virtualenv "$final_path"
 
 #run source in a 'sub shell'