diff --git a/src/controllers/serviceController.ts b/src/controllers/serviceController.ts
index 64c580b..fc735ab 100644
--- a/src/controllers/serviceController.ts
+++ b/src/controllers/serviceController.ts
@@ -71,7 +71,7 @@ export default class ServiceController {
     return await this.ain.getValue(creditHistoryPath) as creditHistories;
   }
 
-  async request(serviceName: string, requestData: string) : Promise<string> {
+  async request(serviceName: string, requestData: any) : Promise<any> {
     this.isRunning(serviceName);
     const result = await new Promise(async (resolve, reject) => {
       const requestKey = Date.now();
diff --git a/src/service.ts b/src/service.ts
index 6caae0b..216fae7 100644
--- a/src/service.ts
+++ b/src/service.ts
@@ -76,7 +76,7 @@ export default class Service {
    * @param {string} requestData String data for request to service. 
    * @returns {string} Response data from service.
    */
-  async request(requestData: string) {
+  async request(requestData: any) {
     this.isLoggedIn();
     return await this.serviceController.request(this.serviceName, requestData);
   }