diff --git a/Cron/SyncStatistics.php b/Cron/SyncStatistics.php
index 25b2cb22..5e2b306d 100644
--- a/Cron/SyncStatistics.php
+++ b/Cron/SyncStatistics.php
@@ -4,17 +4,30 @@
 
 use Ebizmarts\MailChimp\Helper\Data as MailChimpHelper;
 use Ebizmarts\MailChimp\Model\ResourceModel\MailchimpNotification\CollectionFactory as MailchimpNotificationCollectionFactory;
+use Ebizmarts\MailChimp\Model\ResourceModel\MailchimpNotification;
 class SyncStatistics
 {
+    /**
+     * @var MailChimpHelper
+     */
     private $helper;
+    /**
+     * @var MailchimpNotificationCollectionFactory
+     */
     private $mailchimpNotificationCollectionFactory;
+    /**
+     * @var MailchimpNotification
+     */
+    private $mailchimpNotification;
     public function __construct(
         MailChimpHelper $helper,
-        MailchimpNotificationCollectionFactory $mailchimpNotificationCollectionFactory
+        MailchimpNotificationCollectionFactory $mailchimpNotificationCollectionFactory,
+        MailchimpNotification $mailchimpNotification
     )
     {
         $this->helper = $helper;
         $this->mailchimpNotificationCollectionFactory = $mailchimpNotificationCollectionFactory;
+        $this->mailchimpNotification = $mailchimpNotification;
     }
     public function execute()
     {
@@ -35,7 +48,7 @@ public function execute()
         } else {
             $this->helper->log("Support is off");
         }
-
+        $this->cleanData();
         $this->helper->log("Sync statistics finished");
     }
     private function getCollection()
@@ -52,6 +65,12 @@ private function syncData($data)
     }
     private function cleanData()
     {
-
+        try {
+            $connection = $this->mailchimpNotification->getConnection();
+            $tableName = $this->mailchimpNotification->getMainTable();
+            $connection->delete($tableName, ['date_add(generated_at , interval 1 week) <= NOW()']);
+        } catch (\Exception $e) {
+            $this->helper->log($e->getMessage());
+        }
     }
 }
diff --git a/etc/crontab.xml b/etc/crontab.xml
index a928c16d..eea22334 100644
--- a/etc/crontab.xml
+++ b/etc/crontab.xml
@@ -33,7 +33,7 @@
             <schedule>*/5 * * * *</schedule>
         </job>
         <job name="ebizmarts_sync_statistics" instance="Ebizmarts\MailChimp\Cron\SyncStatistics" method="execute">
-            <schedule>*/5 * * * *</schedule>
+            <schedule>*/10 * * * *</schedule>
         </job>
     </group>
 </config>