Prevent apt/dpkg from automatically enabling services during the upgrade process.

[Victor <avefenix@riseup.net>]

Dear Debian friends,

I use Debian Sid as my home distribution, and I have an annoying
problem. If I disable some services with "systemctl disable service", it
happens that whenever an upgrade of any service's package appears,
apt/dpkg will automatically enable the service during the upgrade
process. Is it there a way to avoid that behaviour? I don't want to
disable the services every time that there is an upgrade of my disabled
services. 

Thanks in advance.
Éter.