Forcing a portupgrade?

[Bob]

# portupgrade mozilla
--->  Upgrading 'mozilla-1.7.12_5,2' to
'mozilla-1.7.13_2,2' (www/mozilla)

[...]

===>  mozilla-1.7.13_2,2 has known vulnerabilities:
=> mozilla -- multiple vulnerabilities.
   Reference:
<http://www.FreeBSD.org/ports/portaudit/e6296105-449b-11db-ba89-000c6ec775d9.html>
=> mozilla -- multiple vulnerabilities. Reference:
<http://www.FreeBSD.org/ports/portaudit/e2a92664-1d60-11db-88cf-000c6ec775d9.html>
=> Please update your ports tree and try again. *** Error code 1

My ports tree IS up to date, and I have a copy of mozilla-1.7.13_2,2
in /usr/ports/distfiles, but obviously there is no current fix for the
vulnerability(s). I would still like to upgrade Mozilla to 1.7.13_2,2.
Is there a way to force the upgrade despite the port-vulnerability stop?
 
Bob

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