I'm on `Ubuntu 14.04.3 LTS` and running `lua-expat 1.2.0-6` the newest [version for Trusty](https://launchpad.net/ubuntu/+source/lua-expat).
Prosody throws this error:

> 
> The version of LuaExpat on your system does not support stanza size
> limits, which may leave servers on untrusted networks (e.g. the
> internet) vulnerable to denial-of-service attacks. You should upgrade
> to LuaExpat 1.3.0 or higher as soon as possible. See
> <http://prosody.im/doc/depends#luaexpat> for more information.
> 
> 
> 

How can I / What is the best way to install a newer version of lua-expat?