How to update Node.js on centos 6.X

# node -v
v0.10.40

# npm cache clean -f
# npm install -g n

# /usr/lib/node_modules/n/bin/n latest

# ln -sf /usr/local/n/versions/node/<VERSION>/bin/node /usr/bin/node

# node -v
v6.2.2

# npm -v
2.14.7

# npm install -g npm

# npm -v
3.10.2