Just to document. I’ve updated the settings in /etc/named/named.ca by using the following command and then restarting DNS.

sudo curl ftp://ftp.internic.net/domain/named.root -o /var/named/named.ca

Not sure how often this should be done.
I also added the following to /etc/named.conf to reduced the error logging. I got that tidbit from google groups

logging {
category lame-servers { null; };
category edns-disabled { null; };
};