diff --git a/Mailer.php b/Mailer.php
index 5c06844..3275511 100644
--- a/Mailer.php
+++ b/Mailer.php
@@ -80,7 +80,7 @@ class Mailer extends BaseMailer
      */
     public $messageClass = 'yii\swiftmailer\Message';
     /**
-     * @var boolean whether to enable writing of the SwiftMailer internal logs using Yii log mechanism.
+     * @var bool whether to enable writing of the SwiftMailer internal logs using Yii log mechanism.
      * If enabled [[Logger]] plugin will be attached to the [[transport]] for this purpose.
      * @see Logger
      */
diff --git a/Message.php b/Message.php
index 7b0eaab..9d343ec 100644
--- a/Message.php
+++ b/Message.php
@@ -20,7 +20,7 @@ use yii\mail\BaseMessage;
  *
  * @method Mailer getMailer() returns mailer instance.
  *
- * @property integer $priority Priority value as integer in range: `1..5`, where 1 is the highest priority and
+ * @property int $priority Priority value as integer in range: `1..5`, where 1 is the highest priority and
  * 5 is the lowest.
  * @property string $readReceiptTo Receipt receive email addresses. Note that the type of this property
  * differs in getter and setter. See [[getReadReceiptTo()]] and [[setReadReceiptTo()]] for details.
@@ -505,7 +505,7 @@ class Message extends BaseMessage
 
     /**
      * Set the priority of this message.
-     * @param integer $priority priority value, should be an integer in range: `1..5`,
+     * @param int $priority priority value, should be an integer in range: `1..5`,
      * where 1 is the highest priority and 5 is the lowest.
      * @return $this self reference.
      * @since 2.0.6
@@ -518,7 +518,7 @@ class Message extends BaseMessage
 
     /**
      * Returns the priority of this message.
-     * @return integer priority value as integer in range: `1..5`,
+     * @return int priority value as integer in range: `1..5`,
      * where 1 is the highest priority and 5 is the lowest.
      * @since 2.0.6
      */