How can I update my nameservers?

XeronHost cPanel Nameservers
ns1.xeronhost.com
ns2.xeronhost.com

XeronHost FreeDNS
xeronhost.mercury.orderbox-dns.com
xeronhost.earth.orderbox-dns.com
xeronhost.mars.orderbox-dns.com
xeronhost.venus.orderbox-dns.com