diff --git a/index.d.ts b/index.d.ts
index 04d9340306707b7d9c028bc692a6884c28e5a975..7c15a97c398fc5c41528803822f4e7bd1a27b36e 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,4 +1,6 @@
 import { EventEmitter2 as EventEmitter } from "eventemitter2";
+import {CookieAgentOptions} from 'http-cookie-agent/http'
+import { AxiosInstance } from "axios";
 
 declare namespace nodeUnifi {
     interface SiteSysinfo {
@@ -176,6 +178,8 @@ declare namespace nodeUnifi {
     }
 }
 
+type CreateAxiosInstance = (options: Required<CookieAgentOptions>) => AxiosInstance;
+
 declare class Controller extends EventEmitter {
     /**
      * Initialize a new Controller instance
@@ -187,6 +191,7 @@ declare class Controller extends EventEmitter {
      * @param {boolean} [options.sslverify] - Enable SSL verification
      * @param {number} [options.timeout] - Request timeout in milliseconds
      * @param {boolean} [options.rememberMe] - Remember login session
+     * @param {CreateAxiosInstance} [options.createAxiosInstance] - Custom Axios instance
      */
     constructor(options?: {
         host?: string;
@@ -198,6 +203,7 @@ declare class Controller extends EventEmitter {
         sslverify?: boolean;
         timeout?: number;
         rememberMe?: boolean;
+        createAxiosInstance?: CreateAxiosInstance;
     });
 
     /**