diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b512c09
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+node_modules
\ No newline at end of file
diff --git a/index.js b/index.js
index 87fc0e2..72853f0 100644
--- a/index.js
+++ b/index.js
@@ -2,8 +2,7 @@
 'use strict';
 
 const express = require('express');
-const bodyParser = require('body-parser');
-const app = express().use(bodyParser.json()); // creates http server
+const app = express().use(express.json()); // creates http server
 const token = 'test'; // type here your verification token
 
 app.get('/', (req, res) => {
diff --git a/package-lock.json b/package-lock.json
index 4571945..28649f9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.4.tgz",
       "integrity": "sha1-hiRnWMfdbSGmR0/whKR0DsBesh8=",
       "requires": {
-        "mime-types": "2.1.17",
+        "mime-types": "~2.1.16",
         "negotiator": "0.6.1"
       }
     },
@@ -24,15 +24,15 @@
       "integrity": "sha1-h2eKGdhLR9hZuDGZvVm84iKxBFQ=",
       "requires": {
         "bytes": "3.0.0",
-        "content-type": "1.0.4",
+        "content-type": "~1.0.4",
         "debug": "2.6.9",
-        "depd": "1.1.2",
-        "http-errors": "1.6.2",
+        "depd": "~1.1.1",
+        "http-errors": "~1.6.2",
         "iconv-lite": "0.4.19",
-        "on-finished": "2.3.0",
+        "on-finished": "~2.3.0",
         "qs": "6.5.1",
         "raw-body": "2.3.2",
-        "type-is": "1.6.15"
+        "type-is": "~1.6.15"
       }
     },
     "bytes": {
@@ -103,36 +103,36 @@
       "resolved": "https://registry.npmjs.org/express/-/express-4.16.2.tgz",
       "integrity": "sha1-41xt/i1kt9ygpc1PIXgb4ymeB2w=",
       "requires": {
-        "accepts": "1.3.4",
+        "accepts": "~1.3.4",
         "array-flatten": "1.1.1",
         "body-parser": "1.18.2",
         "content-disposition": "0.5.2",
-        "content-type": "1.0.4",
+        "content-type": "~1.0.4",
         "cookie": "0.3.1",
         "cookie-signature": "1.0.6",
         "debug": "2.6.9",
-        "depd": "1.1.2",
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "etag": "1.8.1",
+        "depd": "~1.1.1",
+        "encodeurl": "~1.0.1",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
         "finalhandler": "1.1.0",
         "fresh": "0.5.2",
         "merge-descriptors": "1.0.1",
-        "methods": "1.1.2",
-        "on-finished": "2.3.0",
-        "parseurl": "1.3.2",
+        "methods": "~1.1.2",
+        "on-finished": "~2.3.0",
+        "parseurl": "~1.3.2",
         "path-to-regexp": "0.1.7",
-        "proxy-addr": "2.0.2",
+        "proxy-addr": "~2.0.2",
         "qs": "6.5.1",
-        "range-parser": "1.2.0",
+        "range-parser": "~1.2.0",
         "safe-buffer": "5.1.1",
         "send": "0.16.1",
         "serve-static": "1.13.1",
         "setprototypeof": "1.1.0",
-        "statuses": "1.3.1",
-        "type-is": "1.6.15",
+        "statuses": "~1.3.1",
+        "type-is": "~1.6.15",
         "utils-merge": "1.0.1",
-        "vary": "1.1.2"
+        "vary": "~1.1.2"
       },
       "dependencies": {
         "setprototypeof": {
@@ -153,12 +153,12 @@
       "integrity": "sha1-zgtoVbRYU+eRsvzGgARtiCU91/U=",
       "requires": {
         "debug": "2.6.9",
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "on-finished": "2.3.0",
-        "parseurl": "1.3.2",
-        "statuses": "1.3.1",
-        "unpipe": "1.0.0"
+        "encodeurl": "~1.0.1",
+        "escape-html": "~1.0.3",
+        "on-finished": "~2.3.0",
+        "parseurl": "~1.3.2",
+        "statuses": "~1.3.1",
+        "unpipe": "~1.0.0"
       },
       "dependencies": {
         "statuses": {
@@ -186,7 +186,7 @@
         "depd": "1.1.1",
         "inherits": "2.0.3",
         "setprototypeof": "1.0.3",
-        "statuses": "1.4.0"
+        "statuses": ">= 1.3.1 < 2"
       },
       "dependencies": {
         "depd": {
@@ -241,7 +241,7 @@
       "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.17.tgz",
       "integrity": "sha1-Cdejk/A+mVp5+K+Fe3Cp4KsWVXo=",
       "requires": {
-        "mime-db": "1.30.0"
+        "mime-db": "~1.30.0"
       }
     },
     "ms": {
@@ -277,7 +277,7 @@
       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.2.tgz",
       "integrity": "sha1-ZXFQT0e7mI7IGAJT+F3X4UlSvew=",
       "requires": {
-        "forwarded": "0.1.2",
+        "forwarded": "~0.1.2",
         "ipaddr.js": "1.5.2"
       }
     },
@@ -313,18 +313,18 @@
       "integrity": "sha512-ElCLJdJIKPk6ux/Hocwhk7NFHpI3pVm/IZOYWqUmoxcgeyM+MpxHHKhb8QmlJDX1pU6WrgaHBkVNm73Sv7uc2A==",
       "requires": {
         "debug": "2.6.9",
-        "depd": "1.1.2",
-        "destroy": "1.0.4",
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "etag": "1.8.1",
+        "depd": "~1.1.1",
+        "destroy": "~1.0.4",
+        "encodeurl": "~1.0.1",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
         "fresh": "0.5.2",
-        "http-errors": "1.6.2",
+        "http-errors": "~1.6.2",
         "mime": "1.4.1",
         "ms": "2.0.0",
-        "on-finished": "2.3.0",
-        "range-parser": "1.2.0",
-        "statuses": "1.3.1"
+        "on-finished": "~2.3.0",
+        "range-parser": "~1.2.0",
+        "statuses": "~1.3.1"
       },
       "dependencies": {
         "statuses": {
@@ -339,9 +339,9 @@
       "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.1.tgz",
       "integrity": "sha512-hSMUZrsPa/I09VYFJwa627JJkNs0NrfL1Uzuup+GqHfToR2KcsXFymXSV90hoyw3M+msjFuQly+YzIH/q0MGlQ==",
       "requires": {
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "parseurl": "1.3.2",
+        "encodeurl": "~1.0.1",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.2",
         "send": "0.16.1"
       }
     },
@@ -361,7 +361,7 @@
       "integrity": "sha1-yrEPtJCeRByChC6v4a1kbIGARBA=",
       "requires": {
         "media-typer": "0.3.0",
-        "mime-types": "2.1.17"
+        "mime-types": "~2.1.15"
       }
     },
     "unpipe": {
diff --git a/package.json b/package.json
index 0916be8..01fad2e 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,6 @@
   "description": "## Install dependencies",
   "main": "index.js",
   "dependencies": {
-    "body-parser": "^1.18.2",
     "express": "^4.16.2"
   },
   "devDependencies": {},