diff --git a/src/rest-client-v5.ts b/src/rest-client-v5.ts
index f6ccab7..57e2e2e 100644
--- a/src/rest-client-v5.ts
+++ b/src/rest-client-v5.ts
@@ -812,7 +812,7 @@ export class RestClientV5 extends BaseRestClient {
     category: 'option' | 'linear',
     orders: BatchOrderParamsV5[],
   ): Promise<
-    APIResponseV3<
+    APIResponseV3WithTime<
       {
         list: BatchCreateOrderResultV5[];
       },
@@ -837,7 +837,7 @@ export class RestClientV5 extends BaseRestClient {
     category: 'option' | 'linear',
     orders: BatchAmendOrderParamsV5[],
   ): Promise<
-    APIResponseV3<
+    APIResponseV3WithTime<
       {
         list: BatchAmendOrderResultV5[];
       },
@@ -862,7 +862,7 @@ export class RestClientV5 extends BaseRestClient {
     category: 'option' | 'linear',
     orders: BatchCancelOrderParamsV5[],
   ): Promise<
-    APIResponseV3<
+    APIResponseV3WithTime<
       {
         list: BatchCancelOrderResultV5[];
       },
diff --git a/src/types/shared.ts b/src/types/shared.ts
index 2c50c99..8ac9445 100644
--- a/src/types/shared.ts
+++ b/src/types/shared.ts
@@ -49,7 +49,7 @@ export interface APIRateLimit {
   resetAtTimestamp: number;
 }
 
-export interface APIResponseV3<TResult, TExtInfo = object> {
+export interface APIResponseV3<TResult, TExtInfo = {}> {
   retCode: number;
   retMsg: 'OK' | string;
   result: TResult;
@@ -64,7 +64,10 @@ export interface APIResponseV3<TResult, TExtInfo = object> {
   rateLimitApi?: APIRateLimit;
 }
 
-export type APIResponseV3WithTime<T> = APIResponseV3<T> & { time: number };
+export type APIResponseV3WithTime<TResult, TExtInfo = {}> = APIResponseV3<
+  TResult,
+  TExtInfo
+> & { time: number };
 /**
  * Request Parameter Types
  */