Está apresentando erro

routes(app) ^

TypeError: routes is not a function at Object. (C:\Projeto\api\index.js:7:1) at Module.compile (node:internal/modules/cjs/loader:1159:14) at Module.extensions..js (node:internal/modules/cjs/loader:1213:10) at Module.load (node:internal/modules/cjs/loader:1037:32) at Module.load (node:internal/modules/cjs/loader:878:12) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/runmain:81:12) at node:internal/main/run_main_module:23:47

Meu /api/index.js

const express = require('express')
const routes = require('./routes')

const app = express()
const port = 3000

routes(app)

app.listen(port, () => console.log("Servidor iniciado"))

module.exports = app

api/routes/index.js

const bodyParser = require('body-parser')

module.exportes = app => {
    app.use (bodyParser.json())
    app.get('/', (req, res) => res.send('Ola'))
}