help meee I don't know how to do it, download the version you request but this keeps happening

[l6onvmp]

Description

We have found a promising solution:
Install geckolib, version 4.2 or later.
Unsatisfied dependencies:

The mod 'Bosses of Mass Destruction (Beta)' (bosses_of_mass_destruction) 1.7.5-1.20.1 requires geckolib version 4.2 or later, which you don't have!