sp-dev-fx-webparts/samples/react-upgrade-me/package.json

{
  "name": "react-upgrade-me",
  "version": "0.0.1",
  "private": true,
  "engines": {
    "node": ">=0.10.0"
  },
  "scripts": {
    "build": "gulp bundle",
    "clean": "gulp clean",
    "test": "gulp test"
  },
  "dependencies": {
    "@microsoft/sp-core-library": "1.4.1",
    "@microsoft/sp-lodash-subset": "1.4.1",
    "@microsoft/sp-office-ui-fabric-core": "1.4.1",
    "@microsoft/sp-webpart-base": "1.4.1",
    "@types/react": "15.6.6",
    "@types/react-addons-shallow-compare": "0.14.17",
    "@types/react-dom": "15.5.6",
    "@types/webpack-env": ">=1.12.1 <1.14.0",
    "react": "15.6.2",
    "react-dom": "15.4.2"
  },
  "devDependencies": {
    "@microsoft/sp-build-web": "1.4.1",
    "@microsoft/sp-module-interfaces": "1.4.1",
    "@microsoft/sp-webpart-workbench": "~1.1.0",
    "@types/chai": ">=3.4.34 <3.6.0",
    "@types/mocha": ">=2.2.33 <2.6.0",
    "ajv": "5.2.2",
    "gulp": "~3.9.1"
  }
}