Unable to upgrade Jitsi DEB packages

I am unable to upgrade the Jitsi packages:

$ apt list --upgradable
Listing... Done
jicofo/unstable 1.0-947-1 all [upgradable from: 1.0-939-1]
jitsi-meet-prosody/unstable 1.0.6673-1 all [upgradable from: 1.0.6634-1]
jitsi-meet-web-config/unstable 1.0.6673-1 all [upgradable from: 1.0.6634-1]
jitsi-meet-web/unstable 1.0.6673-1 all [upgradable from: 1.0.6634-1]
jitsi-meet/unstable 2.0.7919-1 all [upgradable from: 2.0.7871-1]
jitsi-videobridge2/unstable 2.2-46-gf19f7758-1 all [upgradable from: 2.2-45-ge8b20f06-1]

But:

$ sudo apt upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
  jicofo jitsi-meet jitsi-meet-web jitsi-meet-web-config jitsi-videobridge2
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.

full-upgrade would remove jitsi-meet:

$ sudo apt full-upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  ca-certificates-java fonts-lato java-common jicofo jitsi-meet-web jitsi-videobridge2 jq libasound2 libasound2-data libavahi-client3
  libavahi-common-data libavahi-common3 libcups2 libglib2.0-0 libglib2.0-data libgraphite2-3 libharfbuzz0b libjq1 liblcms2-2 libnspr4 libnss3
  libonig5 libpcsclite1 libruby2.5 libyaml-0-2 openjdk-11-jre-headless rake ruby ruby-did-you-mean ruby-hocon ruby-minitest ruby-net-telnet
  ruby-power-assert ruby-test-unit ruby-xmlrpc ruby2.5 rubygems-integration shared-mime-info unzip xdg-user-dirs zip
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
  jitsi-meet
The following packages will be upgraded:
  jicofo jitsi-meet-web jitsi-meet-web-config jitsi-videobridge2
4 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
Need to get 74.4 MB of archives.
After this operation, 1,167 kB disk space will be freed.
Do you want to continue? [Y/n] n
Abort.

[adriangibanelbtactic]

Thank you for the feedback that everyone gave before.

Here there is the workaround that worked for us in Debian Buster / Debian 10:

echo "deb http://deb.debian.org/debian/ buster-backports main" > /etc/apt/sources.list.d/buster-backports.list
apt update
apt install -t buster-backports prosody

After installing the right prosody version then either apt dist-upgrade or apt full-upgrade will no longer try to uninstall the jitsi-meet package.

[saghul]

apt install -t backports prosody should do too, I think.