Bit-Developer
diff --git a/‎README.md
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+8 b/‎README.md
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+8
diff --git a/‎package.json
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+2-2 b/‎package.json
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@@ -39,6 +39,14 @@ Follow tutorial [Deploying Full Stack React App to Heroku](https://jojozhuang.gi
 
 Follow tutorial [Continuously Deploy Full Stack React App to Heroku and Netlify with Travis-CI](https://jojozhuang.github.io/tutorial/continuously-deploy-full-stack-react-app-to-heroku-and-netlify-with-travis-ci) to continuously deploy this Full Stack app to Heroku(RESTful API) and Netlify(Frontend React).
 
+## Upgrade eo heorku20
+```sh
+heroku login
+heroku git:remote -a code-editor-react
+git commit --allow-empty -m "Upgrading to heroku-20"
+git push heroku master
+```
+
 # Portfolio
 Read portfolio [Code Editor(React)](https://jojozhuang.github.io/project/code-editor-react/) to learn the main functions of this code editor.
 
 
@@ -63,7 +63,7 @@
     "yargs-parser": "^20.2.9"
   },
   "engines": {
-    "node": "9.4.0",
-    "npm": "6.9.0"
+    "node": "14.16.1",
+    "npm": "6.14.12"
   }
 }
Original file line number	Diff line number	Diff line change
`@@ -63,7 +63,7 @@`
`63`	`63`	`"yargs-parser": "^20.2.9"`
`64`	`64`	`},`
`65`	`65`	`"engines": {`
`66`		`- "node": "9.4.0",`
`67`		`- "npm": "6.9.0"`
	`66`	`+ "node": "14.16.1",`
	`67`	`+ "npm": "6.14.12"`
`68`	`68`	`}`
`69`	`69`	`}`