diff --git a/src/Request.php b/src/Request.php
index <HASH>..<HASH> 100644
--- a/src/Request.php
+++ b/src/Request.php
@@ -17,6 +17,9 @@ class Request
     public $teamDomain;
 
     /** @var string */
+    public $channelId;
+
+    /** @var string */
     public $channelName;
 
     /** @var string */
Add channelId property in Request (#<I>)