diff --git a/message.go b/message.go
index 2b60992..f22def5 100644
--- a/message.go
+++ b/message.go
@@ -80,6 +80,9 @@ type Message struct {
 	// A list of reactions to the message.
 	Reactions []*MessageReactions `json:"reactions"`
 
+	// Whether the message is pinned or not.
+	Pinned bool `json:"pinned"`
+
 	// The type of the message.
 	Type MessageType `json:"type"`