How to upgrade openssl after upgrading from 6.2 to 7.0

[Attos]

Hello list,
I just upgraded my workstation from 6.2 to 7.0 but I haven't been able
to upgrade all the ports.
OpenSSL is giving me problems when trying to upgrade (with
portupgrade). The message I get is that the it's marked as ignore
because it conflicts with the base:

# portupgrade  security/openssl-stable
** Port marked as IGNORE: security/openssl-stable:
        Conflicts with version in the base
** Listing the failed packages (-:ignored / *:skipped / !:failed)
        - security/openssl-stable (marked as IGNORE)

How do I fix this?
TIA

-- 
Attos Janus