Set SOA serial to increment

[jason polachak]

I am running RHEL 7 with latest version of bind 9.9.4-61. I am trying to ensure when I look at the SOA records for the zone it matches the serial number of the zone file. I have dnssec running but we are not using dynamic updates. I have tried using the "serial-update-method increment;" in global named.conf options. This does work however, because we dont use dynamic dns.
How can I get the serial number from the zone files SOA to match the dig output "dig @`hostname` SOA zone.example.com +short"?
Thanks!
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