Node 6.9 om Ubuntu Zesty 17.04

I want to install a newest version of NodeJS on Ubuntu Zesty 17.04. But whether using apt-get or trying to download it from nodesource ppa, I always have the version 4.7.2.

Apt-get

sudo apt-get update
sudo apt-get install nodejs npm

Node PPA

curl -sL https://deb.nodesource.com/setup_6.x | sudo bash -
sudo apt-get update
apt-get install nodejs npm

Result

$> node -v
v4.7.2

How can I get the version 6.9 of NodeJS ?

via Radouane ROUFID