diff --git a/lib/index.d.ts b/lib/index.d.ts
index 1fb7f2d..526e344 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -84,4 +84,11 @@ interface ProgressData {
   total: number;
 }
 
-export function simpleUpdate(wrappedComponent: any): any;
+interface SimpleUpdateOptions {
+  appKey: string;
+}
+
+export function simpleUpdate(
+  wrappedComponent: any,
+  options: SimpleUpdateOptions,
+): any;