diff --git a/app.js b/app.js
index dcb5411..690d528 100644
--- a/app.js
+++ b/app.js
@@ -2,6 +2,7 @@ const express = require('express');
 const fetch = require('node-fetch');
 const cookieParser = require('cookie-parser');
 const path = require('path');
+const fs = require('fs');
 
 const app = express();
 const PORT = process.env.PORT || 3000;