diff --git a/CHANGELOG.md b/CHANGELOG.md
index 335b14b..a76ee0f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Marketplace API client - change log
 
+## 3.11.6
+- added support for `first_delivery_attempt` order field
+
 ## 3.11.5
 - reverted the changes from 3.11.1 - 3.11.4
 
diff --git a/Example/OrdersExample.php b/Example/OrdersExample.php
index 0c9b450..20a2275 100644
--- a/Example/OrdersExample.php
+++ b/Example/OrdersExample.php
@@ -160,11 +160,12 @@
 
 	/**
 	 * ##################################
-	 * Update order status with delivered at datetime
+	 * Update order status with delivered at and first delivery attempt datetime
 	 * ##################################
 	 */
+	$firstDeliveryAttempt = new \DateTime('2017-08-29 10:09:25');
 	$deliveredToCustomer = new \DateTime('2017-08-30 12:03:32');
-	$responseStatus = $orders->put()->status($order->getOrderId(), Order::STATUS_DELIVERED, true, '', $deliveredToCustomer);
+	$responseStatus = $orders->put()->status($order->getOrderId(), Order::STATUS_DELIVERED, true, '', $deliveredToCustomer, $firstDeliveryAttempt);
 	print('New order status: ');
 	var_dump($responseStatus);
 	print(PHP_EOL);
diff --git a/composer.json b/composer.json
index ae44ed1..3448dfc 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
   "name" : "mallgroup/mpapi-client",
   "description" : "Mall marketplace API client",
-  "version" : "3.11.5",
+  "version" : "3.11.6",
   "require" : {
     "php" : "^5.5 || ^7.0",
     "guzzlehttp/guzzle" : ">=6.2.3",
diff --git a/src/Endpoints/OrderUpdateEndpoints.php b/src/Endpoints/OrderUpdateEndpoints.php
index dfe2463..9626047 100644
--- a/src/Endpoints/OrderUpdateEndpoints.php
+++ b/src/Endpoints/OrderUpdateEndpoints.php
@@ -58,24 +58,38 @@ class OrderUpdateEndpoints extends AbstractEndpoints
 	/**
 	 * Update order status
 	 *
-	 * @param integer $orderId
-	 * @param string $status
-	 * @param boolean $confirmed
-	 * @param string $trackingNumber
+	 * @param integer                 $orderId
+	 * @param string                  $status
+	 * @param boolean                 $confirmed
+	 * @param string                  $trackingNumber
 	 * @param \DateTimeInterface|null $deliveredAt
+	 * @param \DateTimeInterface|null $firstDeliveryAttempt
 	 * @return bool
+	 * @throws \MPAPI\Exceptions\ClientIdException
+	 * @throws \MPAPI\Exceptions\ForceTokenException
 	 */
-	public function status($orderId, $status, $confirmed = true, $trackingNumber = '', \DateTimeInterface $deliveredAt = null)
+	public function status(
+		$orderId,
+		$status,
+		$confirmed = true,
+		$trackingNumber = '',
+		\DateTimeInterface $deliveredAt = null,
+		\DateTimeInterface $firstDeliveryAttempt = null
+	)
 	{
 		$requestData = [
-			'status' => $status,
-			'confirmed' => $confirmed
+			'status'    => $status,
+			'confirmed' => $confirmed,
 		];
 
 		if ($deliveredAt !== null) {
 			$requestData['delivered_at'] = $deliveredAt->format(self::DATETIME_FORMAT);
 		}
 
+		if ($firstDeliveryAttempt !== null) {
+			$requestData['first_delivery_attempt'] = $firstDeliveryAttempt->format(self::DATETIME_FORMAT);
+		}
+
 		if (!empty($trackingNumber)) {
 			$requestData['tracking_number'] = $trackingNumber;
 		}
diff --git a/src/Services/Client.php b/src/Services/Client.php
index 6ab5355..1c79c3f 100644
--- a/src/Services/Client.php
+++ b/src/Services/Client.php
@@ -27,7 +27,7 @@ class Client
 	 *
 	 * @var string
 	 */
-	const APPLICATION_NAME = 'mpapic-v3.11.5';
+	const APPLICATION_NAME = 'mpapic-v3.11.6';
 
 	/**
 	 *