bindutils update

Hi all, this morning I installed CRUX 3.3 in my Lenovo 50/50 Desktop PC. I had no problem at all, but when I tried to update there was no success in updating bindutils-9.10.4-1 to bindutils-9.10,5-1. In fact, downloading 'ftp://ftp.isc.org/isc/bind9/9.10.5/bind-9.10.5.tar.gz' fails since connecting to ftp.isc.org always times out. Owing to the important role of bindutils, I fear that this could constitute a problem in the future managing of informations about DNSs. Is this possible? What to do to overcome the obstacle? I would much appreciate an help. Thanks.