diff --git a/src/Illuminate/Notifications/Channels/MailChannel.php b/src/Illuminate/Notifications/Channels/MailChannel.php
index 594320d5b791..fd3a3cc28911 100644
--- a/src/Illuminate/Notifications/Channels/MailChannel.php
+++ b/src/Illuminate/Notifications/Channels/MailChannel.php
@@ -143,7 +143,7 @@ protected function buildMessage($mailMessage, $notifiable, $notification, $messa
         $this->addAttachments($mailMessage, $message);
 
         if (! is_null($message->priority)) {
-            $mailMessage->setPriority($message->priority);
+            $mailMessage->priority($message->priority);
         }
 
         if ($message->tags) {
diff --git a/tests/Integration/Notifications/SendingMailNotificationsTest.php b/tests/Integration/Notifications/SendingMailNotificationsTest.php
index 053087054057..5fe74775f2ef 100644
--- a/tests/Integration/Notifications/SendingMailNotificationsTest.php
+++ b/tests/Integration/Notifications/SendingMailNotificationsTest.php
@@ -98,7 +98,7 @@ public function testMailIsSent()
 
                 $message->shouldReceive('subject')->once()->with('Test Mail Notification');
 
-                $message->shouldReceive('setPriority')->once()->with(1);
+                $message->shouldReceive('priority')->once()->with(1);
 
                 $closure($message);
 
@@ -144,7 +144,7 @@ public function testMailIsSentToNamedAddress()
 
                 $message->shouldReceive('subject')->once()->with('Test Mail Notification');
 
-                $message->shouldReceive('setPriority')->once()->with(1);
+                $message->shouldReceive('priority')->once()->with(1);
 
                 $closure($message);