diff --git a/aftership-woocommerce-tracking.php b/aftership-woocommerce-tracking.php
index 9e0e4a1..9fef067 100644
--- a/aftership-woocommerce-tracking.php
+++ b/aftership-woocommerce-tracking.php
@@ -3,7 +3,7 @@
  * Plugin Name: AfterShip Tracking - All-In-One WooCommerce Order Tracking (Free plan available)
  * Plugin URI: http://aftership.com/
  * Description: Track orders in one place. shipment tracking, automated notifications, order lookup, branded tracking page, delivery day prediction
- * Version: 1.17.11
+ * Version: 1.17.12
  * Author: AfterShip
  * Author URI: http://aftership.com
  *
@@ -20,7 +20,7 @@
 
 require_once( 'woo-includes/woo-functions.php' );
 
-define( 'AFTERSHIP_VERSION', '1.17.11' );
+define( 'AFTERSHIP_VERSION', '1.17.12' );
 define( 'AFTERSHIP_PATH', dirname( __FILE__ ) );
 define( 'AFTERSHIP_ASSETS_URL', plugins_url() . '/' . basename( AFTERSHIP_PATH ) );
 define( 'AFTERSHIP_SCRIPT_TAGS', 'aftership_script_tags' );
diff --git a/includes/class-aftership-actions.php b/includes/class-aftership-actions.php
index 6c9eb75..1a15a56 100644
--- a/includes/class-aftership-actions.php
+++ b/includes/class-aftership-actions.php
@@ -454,7 +454,7 @@ public function post_order_tracking( $order_id, $args ) {
 		$tracking_item['tracking_number'] = wc_clean( $args['tracking_number'] );
 		$tracking_item['tracking_id']     = md5( "{$tracking_item['slug']}-{$tracking_item['tracking_number']}" );
 		// need apply default value
-		$tracking_item['additional_fields'] = array();
+		$tracking_item['additional_fields'] = new stdClass();
 		// line items for each tracking
 		if ( isset( $args['line_items'] ) && is_array( $args['line_items'] ) && count( $args['line_items'] ) ) {
 			$tracking_item['line_items'] = $args['line_items'];
diff --git a/readme.txt b/readme.txt
index 90cc6a3..5d687a9 100644
--- a/readme.txt
+++ b/readme.txt
@@ -4,7 +4,7 @@ Donate link: https://www.aftership.com/
 Tags: woocommerce shipping,woocommerce tracking,shipment tracking,order tracking, woocommerce,track order,dhl,ups,usps,fedex,shipping,tracking,order
 Requires at least: 2.9
 Tested up to: 6.3
-Stable tag: 1.17.11
+Stable tag: 1.17.12
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -141,6 +141,9 @@ Tailor a dynamic branded tracking page. Upload promotional banner, logo, and fav
 
 == Changelog ==
 
+= 1.17.12 =
+* Fix known issue
+
 = 1.17.11 =
 * Fix known issue