diff --git a/scripts/upgrade b/scripts/upgrade
index e55c805..5364cd0 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -101,12 +101,11 @@ ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version
 #=================================================
 ynh_script_progression --message="Building $app... (this will take some time and resources!)" --weight=60
 
-pushd "$install_dir" 
-	ynh_exec_warn_less npm install --allow-root
-	ynh_exec_warn_less npm install -g bower
-	ynh_exec_warn_less bower update --allow-root
-	ynh_exec_warn_less npm i
-	ynh_exec_warn_less npm run build
+pushd "$install_dir"
+	ynh_use_nodejs
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH $ynh_npm ci
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH $ynh_npm run install:components
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH $ynh_npm run build
 popd
 
 #=================================================