Can't install because of two dependencies

[spatial25]

On attempted install I receive this error:
The following packages have unmet dependencies:
hardened-kernel : Depends: libelf-dev but it is not going to be installed
Depends: gcc-12-plugin-dev but it is not installable
E: Unable to correct problems, you have held broken packages.

Libelf has an outdated dependency compared to what is currently on my system and gcc-12-plugin-dev seems to not exist.

The following packages have unmet dependencies:
libelf-dev : Depends: libelf1 (= 0.183-1) but 0.187-1~bpo11+1 is to be installed

Any advice? I have debian 11 with kicksecure.