diff --git a/backend/src/routes/cart.js b/backend/src/routes/cart.js
index 705e8a1..677a877 100644
--- a/backend/src/routes/cart.js
+++ b/backend/src/routes/cart.js
@@ -1,7 +1,7 @@
 const express = require('express');
 const { v4: uuidv4 } = require('uuid');
 const router = express.Router();
-const shippingService = require('../services/shippingService');
+const shippingService = require('../services/shippingService.js');
 const config = require('../config');
 
 module.exports = (pool, query, authMiddleware) => {
diff --git a/backend/src/routes/shipping.js b/backend/src/routes/shipping.js
index 271509c..94e675b 100644
--- a/backend/src/routes/shipping.js
+++ b/backend/src/routes/shipping.js
@@ -1,6 +1,6 @@
 const express = require('express');
 const router = express.Router();
-const shippingService = require('../services/shippingService');
+const shippingService = require('../services/shippingService.js');
 const config = require('../config');
 
 module.exports = (pool, query, authMiddleware) => {
diff --git a/backend/src/services/shippingService.js b/backend/src/services/shippingService.js
index de8192d..2dd3e85 100644
--- a/backend/src/services/shippingService.js
+++ b/backend/src/services/shippingService.js
@@ -1,4 +1,4 @@
-import axios from 'axios';
+const axios = require('axios');
 const config = require('../config');
 
 /**