Remove /lib/modules for old kernel?

[Marc Paquette <faupaq@zoo.net>]

I upgraded to Debian 2.2 and consequently I'm using kernel 2.2.17.

However, after updating I noticed that the /lib/modules/2.0.36/
hierarchy is still on my machine along with the new
/lib/modules/2.2.17 hierarchy.

Can I safely remove the old modules?

Marc.