Not able to create new app

Created by: abhinavkumar940

Just installed it on OSX 10.10.5

tried creating a new app by create-react-app hello-world got this

/usr/local/lib/node_modules/create-react-app/node_modules/path-exists/index.js:2 const fs = require('fs'); ^^^^^ SyntaxError: Use of const in strict mode. at Module._compile (module.js:439:25) at Object.Module._extensions..js (module.js:474:10) at Module.load (module.js:356:32) at Function.Module._load (module.js:312:12) at Module.require (module.js:364:17) at require (module.js:380:17) at Object. (/usr/local/lib/node_modules/create-react-app/index.js:44:18) at Module._compile (module.js:456:26) at Object.Module._extensions..js (module.js:474:10) at Module.load (module.js:356:32)