Can't install libreoffice due to python3-uno dep

[starox]

After 20.04 upgrade, when I try to install libreoffice, I have a python3 dependency issue:

$ LANG=C sudo apt install --no-install-recommends libreoffice
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libreoffice : Depends: python3-uno (>= 4.4.0~beta2) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

$ LANG=C sudo apt install python3-uno
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 python3-uno : Depends: python3 (< 3.8) but 3.8.2-0ubuntu2 is to be installed
E: Unable to correct problems, you have held broken packages.

[starox (starox)]

Please ignore this bug, I just saw that the upgrade process from 19.10 to 20.04 lts fails for me.
I messed somewhere because the eoan (19.10) release is still referenced in my apt/source.list