diff --git a/src/Model/Entity/Customers/Customer.php b/src/Model/Entity/Customers/Customer.php
index 7db3811..bad3cf3 100644
--- a/src/Model/Entity/Customers/Customer.php
+++ b/src/Model/Entity/Customers/Customer.php
@@ -120,6 +120,15 @@ class Customer implements CustomerInterface
      */
     public $tags;
 
+
+    /**
+     * @var string
+     *
+     * @JMS\Type("string")
+     * @JMS\SerializedName("attachedTag")
+     */
+    public $attachedTag;
+
     /**
      * @var string[]
      *
diff --git a/src/Model/Entity/Settings/NonWorkingDay.php b/src/Model/Entity/Settings/NonWorkingDay.php
new file mode 100644
index 0000000..e2e011d
--- /dev/null
+++ b/src/Model/Entity/Settings/NonWorkingDay.php
@@ -0,0 +1,37 @@
+<?php
+
+/**
+ * PHP version 7.3
+ *
+ * @category Value
+ * @package  RetailCrm\Api\Model\Entity\Settings
+ */
+
+namespace RetailCrm\Api\Model\Entity\Settings;
+
+use RetailCrm\Api\Component\Serializer\Annotation as JMS;
+
+/**
+ * Class NonWorkingDay
+ *
+ * @category NonWorkingDay
+ * @package  RetailCrm\Api\Model\Entity\Settings
+ */
+class NonWorkingDay
+{
+    /**
+     * @var string
+     *
+     * @JMS\Type("string")
+     * @JMS\SerializedName("start_date")
+     */
+    public $startDate;
+
+    /**
+     * @var string
+     *
+     * @JMS\Type("string")
+     * @JMS\SerializedName("end_date")
+     */
+    public $endDate;
+}
diff --git a/src/Model/Entity/Settings/Settings.php b/src/Model/Entity/Settings/Settings.php
index 9036111..607b11e 100644
--- a/src/Model/Entity/Settings/Settings.php
+++ b/src/Model/Entity/Settings/Settings.php
@@ -44,10 +44,18 @@ class Settings
     public $timezone;
 
     /**
-     * @var \RetailCrm\Api\Model\Entity\Settings\WorkTime
+     * @var \RetailCrm\Api\Model\Entity\Settings\WorkTime[]
      *
      * @JMS\Type("array<RetailCrm\Api\Model\Entity\Settings\WorkTime>")
      * @JMS\SerializedName("work_times")
      */
     public $workTimes;
+
+    /**
+     * @var \RetailCrm\Api\Model\Entity\Settings\NonWorkingDay[]
+     *
+     * @JMS\Type("array<RetailCrm\Api\Model\Entity\Settings\NonWorkingDay>")
+     * @JMS\SerializedName("non_working_days")
+     */
+    public $nonWorkingDays;
 }
diff --git a/tests/src/Model/Callback/Entity/Integration/SettingsTest.php b/tests/src/Model/Callback/Entity/Integration/SettingsTest.php
index 18a11a3..145b96d 100644
--- a/tests/src/Model/Callback/Entity/Integration/SettingsTest.php
+++ b/tests/src/Model/Callback/Entity/Integration/SettingsTest.php
@@ -11,6 +11,7 @@ namespace RetailCrm\Tests\Model\Callback\Entity\Integration;
 
 use PHPUnit\Framework\TestCase;
 use RetailCrm\Api\Factory\SerializerFactory;
+use RetailCrm\Api\Model\Entity\Settings\NonWorkingDay;
 use RetailCrm\Api\Model\Entity\Settings\Settings as SystemSettings;
 use RetailCrm\Api\Model\Callback\Entity\Integration\Settings;
 use RetailCrm\Api\Model\Entity\Settings\Value;
@@ -44,6 +45,12 @@ class SettingsTest extends TestCase
                             "lunch_end_time" => "05:00",
                         ],
                     ],
+                    'non_working_days' => [
+                        [
+                            'start_date' => '05.29',
+                            'end_date' => '06.29'
+                        ]
+                    ]
                 ],
             ],
             Settings::class
@@ -53,5 +60,6 @@ class SettingsTest extends TestCase
         self::assertInstanceOf(SystemSettings::class, $settings->settings);
         self::assertInstanceOf(Value::class, $settings->settings->defaultCurrency);
         self::assertInstanceOf(WorkTime::class, $settings->settings->workTimes[0]);
+        self::assertInstanceOf(NonWorkingDay::class, $settings->settings->nonWorkingDays[0]);
     }
 }