diff --git a/example/express/package.json b/example/express/package.json
index fa51a54..8bc827e 100644
--- a/example/express/package.json
+++ b/example/express/package.json
@@ -16,6 +16,7 @@
   "dependencies": {
     "@sinclair/typebox": "^0.23.4",
     "ajv": "^6",
+    "cors": "^2.8.5",
     "express": "^4.17.3",
     "http-errors": "^2.0.0",
     "mongoose": "^6.2.4",
@@ -23,6 +24,7 @@
     "swagger-ui-express": "^4.3.0"
   },
   "devDependencies": {
+    "@types/cors": "^2.8.12",
     "@types/express": "^4.17.13",
     "@types/http-errors": "^1.8.2",
     "@types/morgan": "^1.9.3",
diff --git a/example/express/src/network/server.ts b/example/express/src/network/server.ts
index fc56ca1..c35ae6b 100644
--- a/example/express/src/network/server.ts
+++ b/example/express/src/network/server.ts
@@ -1,6 +1,7 @@
 import express from 'express'
 import mongoose from 'mongoose'
 import morgan from 'morgan'
+import cors from 'cors'
 
 import { applyRoutes } from './router'
 
@@ -16,7 +17,7 @@ class Server {
   }
 
   private _config() {
-    this._app.set('port', PORT)
+    this._app.use(cors())
     this._app.use(morgan('dev'))
     this._app.use(express.json())
     this._app.use(express.urlencoded({ extended: false }))
diff --git a/example/express/yarn.lock b/example/express/yarn.lock
index f7f54a6..2b8448c 100644
--- a/example/express/yarn.lock
+++ b/example/express/yarn.lock
@@ -147,6 +147,11 @@
   dependencies:
     "@types/node" "*"
 
+"@types/cors@^2.8.12":
+  version "2.8.12"
+  resolved "https://registry.yarnpkg.com/@types/cors/-/cors-2.8.12.tgz#6b2c510a7ad7039e98e7b8d3d6598f4359e5c080"
+  integrity sha512-vt+kDhq/M2ayberEtJcIN/hxXy1Pk+59g2FV/ZQceeaTyCtCucjL2Q7FXlFjtWn4n15KCr1NE2lNNFhp0lEThw==
+
 "@types/eslint-scope@^3.7.3":
   version "3.7.3"
   resolved "https://registry.yarnpkg.com/@types/eslint-scope/-/eslint-scope-3.7.3.tgz#125b88504b61e3c8bc6f870882003253005c3224"
@@ -1139,6 +1144,14 @@ core-util-is@~1.0.0:
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.3.tgz#a6042d3634c2b27e9328f837b965fac83808db85"
   integrity sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==
 
+cors@^2.8.5:
+  version "2.8.5"
+  resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.5.tgz#eac11da51592dd86b9f06f6e7ac293b3df875d29"
+  integrity sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==
+  dependencies:
+    object-assign "^4"
+    vary "^1"
+
 create-require@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/create-require/-/create-require-1.1.1.tgz#c1d7e8f1e5f6cfc9ff65f9cd352d37348756c333"
@@ -2873,6 +2886,11 @@ null-check@^1.0.0:
   resolved "https://registry.yarnpkg.com/null-check/-/null-check-1.0.0.tgz#977dffd7176012b9ec30d2a39db5cf72a0439edd"
   integrity sha1-l33/1xdgErnsMNKjnbXPcqBDnt0=
 
+object-assign@^4:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+  integrity sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=
+
 object-inspect@^1.11.0, object-inspect@^1.9.0:
   version "1.12.0"
   resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.12.0.tgz#6e2c120e868fd1fd18cb4f18c31741d0d6e776f0"
@@ -4043,7 +4061,7 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
-vary@~1.1.2:
+vary@^1, vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
   integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
diff --git a/lib/src/functions/api.js b/lib/src/functions/api.js
index 7283ebf..d0552bf 100644
--- a/lib/src/functions/api.js
+++ b/lib/src/functions/api.js
@@ -661,6 +661,7 @@ export { applyRoutes }
         content: `import express from 'express'
 import mongoose from 'mongoose'
 import morgan from 'morgan'
+import cors from 'cors'
 
 import { applyRoutes } from './router'
 
@@ -676,7 +677,7 @@ class Server {
   }
 
   private _config() {
-    this._app.set('port', PORT)
+    this._app.use(cors())
     this._app.use(morgan('dev'))
     this._app.use(express.json())
     this._app.use(express.urlencoded({ extended: false }))
diff --git a/lib/src/index.js b/lib/src/index.js
index a933e97..3e9d8ab 100644
--- a/lib/src/index.js
+++ b/lib/src/index.js
@@ -57,13 +57,13 @@ module.exports = async ({
     cliProgress.Presets.shades_classic
   )
 
-  const expressProdPackages = 'express morgan swagger-ui-express'
+  const expressProdPackages = 'express morgan swagger-ui-express cors'
   const fastifyProdPackages = 'fastify fastify-swagger'
   const prodPackages = `${manager} http-errors mongoose @sinclair/typebox ajv@^6 ${
     fastify ? fastifyProdPackages : expressProdPackages
   }`
 
-  const expressDevPackages = `@types/express @types/morgan @types/swagger-ui-express`
+  const expressDevPackages = `@types/express @types/morgan @types/swagger-ui-express @types/cors`
   const fastifyDevPackages = ''
   const devPackages = `${manager} -D \
 @types/http-errors \