[CentOS] How to disable dhcpv6-client on Centos 8

Machine is an internal server with zero need to provide or receive ip addresses using dhcp (all
IPs are hard coded).

Question: how do I disable dhcpv6-client on this box?

[user at boxname user]# firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: enp2s0
  sources:
  services: cockpit dhcpv6-client http https ssh
  ports:
  protocols:
  masquerade: no
  forward-ports:
  source-ports:
  icmp-blocks:
  rich rules:

Thanks,

Jay