[rocky] Problem booting after kernel upgrading

Hi list, I'm using RL8.5 on my workstation and I have an old NVIDIA GTX 1050ti. Using nouveau I get bad performances so I install nvidia driver from NVIDIA site. I use dkms from EPEL.

Today after the kernel update my system (during boot) gone in emergency mode and running journalctl -xb I found this message:

kernel: nvidia: module verification failed: signature and/or required key missing - tainting kernel

Reinstalling NVIDIA driver solve the problem but:

1) This problem is caused by DKMS that does not recompile the driver for the next driver?

2) Something else

Any help will be appreciated.

Thank you in advance.