Check your current Node.js version with `node -v`
Check your current npm version with `npm -v`
Install a Node version manager such as `nvm`
On macOS or Linux, install `nvm` using the official install script
On Windows, install `nvm-windows`
List available Node.js versions with `nvm ls-remote` or the version manager equivalent
Install the desired Node.js version with `nvm install
Switch to the installed version with `nvm use
Set the installed version as default with `nvm alias default
Verify the update with `node -v`
If you do not use a version manager, download the latest Node.js installer from the official website
Run the installer and follow the setup steps
Restart your terminal after installation
Verify the update with `node -v`
Update npm if needed with `npm install -g npm@latest`