diff --git a/packages/github/src/interfaces.ts b/packages/github/src/interfaces.ts
index 8ab08bfeb0..5b3195ca7b 100644
--- a/packages/github/src/interfaces.ts
+++ b/packages/github/src/interfaces.ts
@@ -10,10 +10,14 @@ export interface PayloadRepository {
     name?: string
   }
   html_url?: string
+  default_branch: string;
 }
 
 export interface WebhookPayload {
   [key: string]: any
+  base?: { 
+    ref: string 
+  }
   repository?: PayloadRepository
   issue?: {
     [key: string]: any
@@ -26,6 +30,8 @@ export interface WebhookPayload {
     number: number
     html_url?: string
     body?: string
+    merged?: boolean
+    merged_by?: { login: string };
   }
   sender?: {
     [key: string]: any