diff --git a/scripts/upgrade b/scripts/upgrade
index 0e7dfeb..67edb38 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -92,6 +92,10 @@ ynh_script_progression --message="Ensuring downward compatibility..."
 # Upgrade from <0.2.1~ynh4:
 if ynh_compare_current_package_version --comparison lt --version 0.2.1~ynh4 || [ -z "$db_user" ]
 then
+	# import old parameters
+	registration_open=$(ynh_app_setting_get --app="$app" --key=registration_open)
+	registration_approval=$(ynh_app_setting_get --app="$app" --key=registration_approval)
+	registration_reason=$(ynh_app_setting_get --app="$app" --key=registration_reason)
 	# declaration of new parameters
 	client_max_body_size="100M"
 	media_image_max_size="2097152"