use nvm to install latest node

Shell
$ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.1/install.sh | bash//lists all versions
nvm ls-remote

//installs the version you want (in this case version 14.0.0)
nvm install v14.0.0

//use the version that you installed as the default
nvm use v14.0.0

Source

Also in Shell: