CUDA 11.4.3 installation on Ubuntu 20.04 issue

Following the instructions of installing CUDA 11.4 update 3 on Linux leads to installation of CUDA 11.4 update 4 instead.

The apt-get install can be directed to a specific cuda version by adding cuda-11-4 for example, but I can’t find a way to differ the resolution of version by its updates (e.g., 11-4-3 and not 11-4-4).

Your help will be appreciated.