my-app/package.json

{
  "name": "1-my-app",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@types/enzyme": "^3.9.1",
    "@types/jest": "24.0.12",
    "@types/node": "12.0.0",
    "@types/react": "16.8.17",
    "@types/react-dom": "16.8.4",
    "enzyme": "^3.9.0",
    "react": "^16.8.6",
    "react-addons-test-utils": "^15.6.2",
    "react-dom": "^16.8.6",
    "react-scripts": "3.0.0",
    "typescript": "3.4.5"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "devDependencies": {
    "@types/react-redux": "^7.0.8",
    "react-redux": "^7.0.3",
    "redux": "^4.0.1"
  }
}