diff --git a/scripts/upgrade b/scripts/upgrade
index d34eb20..0683ddc 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -85,7 +85,7 @@ ynh_script_progression --message="Upgrading the app..." --weight=5
 
 pushd $final_path
 	ynh_use_nodejs
-	ynh_npm update
+	ynh\_exec\_as $app $ynh\_node\_load\_PATH $ynh\_npm update
 popd
 
 #=================================================