Your requirements could not be resolved to an installable set of packages. Problem 1 - dg/dibi dev-master requires php 8.0 - 8.4 -> your php version (7.4.33) does not satisfy that requirement. - dg/dibi[v5.0.0, ..., v5.0.1] require php 8.0 - 8.3 -> your php version (7.4.33) does not satisfy that requirement. - dg/dibi 5.0.x-dev is an alias of dg/dibi dev-master and thus requires it to be installed too. - Root composer.json requires dg/dibi ^5.0 -> satisfiable by dg/dibi[v5.0.0, v5.0.1, 5.0.x-dev (alias of dev-master)].