diff --git a/src/index.ts b/src/index.ts
index c9260b1..2e43f85 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,6 +1,7 @@
 import fs from 'fs';
 
 import express from 'express';
+import { CorsOptions } from 'cors';
 
 import createRouter from './router';
 import { createOperations } from './operations';
@@ -17,18 +18,26 @@ export interface MiddlewareOptions {
   file: string;
   locale?: string;
   options?: Partial<JSFOptions>;
+  cors?: CorsOptions;
 }
 
 export const createMockMiddleware = ({
   file,
   locale = 'en',
   options = {},
+  cors = {
+    origin: '*',
+    maxAge: 31536000,
+    credentials: true,
+    methods: ['GET', 'POST', 'PUT', 'PATCH', 'DELETE', 'HEAD', 'OPTIONS'],
+    allowedHeaders: ['Content-Type', 'Authorization', 'Origin', 'Accept'],
+  },
 }: MiddlewareOptions): express.Router => {
   if (!fs.existsSync(file)) {
     throw new Error('File with the openapi docs does not exist');
   }
 
-  const router = createRouter();
+  const router = createRouter(cors);
   const operations = createOperations({ file, locale, options });
 
   router.use('/{0,}', async (req, res, next) => {
diff --git a/src/router.ts b/src/router.ts
index 716f926..74a2c50 100644
--- a/src/router.ts
+++ b/src/router.ts
@@ -1,12 +1,12 @@
 import express from 'express';
 import methodOverride from 'method-override';
 import cookieParser from 'cookie-parser';
-import cors from 'cors';
+import cors, { CorsOptions } from 'cors';
 
-const createRouter = (): express.Router => {
+const createRouter = (corsOptions: CorsOptions): express.Router => {
   const router = express.Router();
 
-  router.use(cors());
+  router.use(cors(corsOptions));
   router.use(express.urlencoded({ extended: true }));
   router.use(express.json());
   router.use(methodOverride());