diff --git a/scripts/upgrade b/scripts/upgrade
index bf59918..6a4da98 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -15,7 +15,7 @@ source /usr/share/yunohost/helpers
 ynh_script_progression --message="Loading installation settings..." --weight=1
 
 app=$YNH_APP_INSTANCE_NAME
-upstream_version=$YNH_APP_MANIFEST_VERSION
+upstream_version=$(ynh_app_upstream_version)
 
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 path_url=$(ynh_app_setting_get --app=$app --key=path)