diff --git a/src/types/channel.ts b/src/types/channel.ts
index 512fa7f..61cbcfe 100644
--- a/src/types/channel.ts
+++ b/src/types/channel.ts
@@ -335,7 +335,11 @@ export enum MessageTypes {
   USER_PREMIUM_GUILD_SUBSCRIPTION_TIER_3 = 11,
   CHANNEL_FOLLOW_ADD = 12,
   GUILD_DISCOVERY_DISQUALIFIED = 14,
-  GUILD_DISCOVERY_REQUALIFIED = 15
+  GUILD_DISCOVERY_REQUALIFIED = 15,
+  GUILD_DISCOVERY_GRACE_PERIOD_INITIAL_WARNING = 16,
+  GUILD_DISCOVERY_GRACE_PERIOD_FINAL_WARNING = 17,
+  REPLY = 19,
+  APPLICATION_COMMAND = 20,
 }
 
 export enum MessageActivityTypes {