Oprate a relay with xbee

I am trying to oprate a 3v relay with a single xbee.
The issue here is that the xbee output is just not strong enough.
I need some boost to the xbee’s weak signal(the relay does work with the xbee power source(3.3v).

Thank you!

Whats about using a solid state relay?
I’m going to use a Sharp S 216 S02 (but did not try it out till now - it’s just ordered).

Or refer to https://sites.google.com/site/xbeerelaycontroller/ (Chapter “The Transistor”).