To match the tutorial exactly, make sure you're installing the same package versions listed in its package.json file:
https://github.com/kimkimani/Nodejs-Authentication-using-Sessions/blob/main/package.json

{
  "name": "project",
  "version": "1.0.0",
  "description": "Node.js authentication using sessions and Redis",
  "main": "index.js",
  "scripts": {
    "dev": "nodemon index.js"
  },
  "keywords": ["authentication", "express", "redis", "session", "nodejs"],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "bcrypt": "^5.0.1",
    "connect-redis": "^6.1.3",
    "ejs": "^3.1.6",
    "express": "^4.17.3",
    "express-session": "^1.17.2",
    "mongoose": "^6.2.9",
    "redis": "^4.0.6"
  },
  "devDependencies": {
    "nodemon": "^2.0.15"
  }
}