diff --git a/types/mosca/index.d.ts b/types/mosca/index.d.ts
index 4020f7ad7f..5354b57d1f 100644
--- a/types/mosca/index.d.ts
+++ b/types/mosca/index.d.ts
@@ -73,9 +73,9 @@ export class Authorizer {
 export interface Packet {
     topic: string;
     payload: any;
-    messageId: any;
-    qos: any;
-    retain: any;
+    messageId: string;
+    qos: number;
+    retain: boolean;
 }
 
 export interface Message {