Venv trouble with python3 on ubuntu 22.04 (jammy)

Well python3-pip installed. python3-venv says:

 The following packages have unmet dependencies:
  python3.10-venv : Depends: python3.10 (= 3.10.4-3) but 3.10.6-1~22.04.2ubuntu1 is to be installed
 E: Unable to correct problems, you have held broken packages.

So: python3.10-venv requires Python 3.10.4 ? And I’ve got 3.10.6
installed? An apt-get update doesn’t change the situation.

apt-mark showhold recites nothing.

Cheers,
Cameron Simpson cs@cskk.id.au