How to make python3 command run Python 3.6 instead of 3.5?

I just downloaded Python 3.6.1, but when I type python3 -V in the terminal it's still Python 3.5.3. How can I make python3 point to Python 3.6? All versions are in the /usr/bin/ directory.

do

rm /usr/bin/python3
ln -s /usr/bin/python3.6 /usr/bin/python3

much better solution:

Damn, Python is used throughout much of Ubuntu for system scripts and software, and software relies on having Python (and the commands to start Python) in a certain spot. do back then.

rm /usr/bin/python3 
ln -s /usr/bin/python3.5 /usr/bin/python3 

create alias in ~/.bash_aliases

alias python3='/usr/bin/python3.6' 

Scripts can then start with something like:

#!/usr/bin/env python3 

Worked Perfectly...

ln -sf /usr/bin/python3.5 /usr/bin/python3