Your requirements could not be resolved to an installable set of packages. Problem 1 - typo3/cms-backend v13.2.1 requires typo3/cms-core 13.2.1 -> satisfiable by typo3/cms-core[v13.2.1]. - typo3/cms-backend v13.3.0 requires typo3/cms-core 13.3.0 -> satisfiable by typo3/cms-core[v13.3.0]. - typo3/cms-core[v13.2.1, ..., v13.3.0] require php ^8.2 -> your php version (8.1.29) does not satisfy that requirement. - Root composer.json requires typo3/cms-backend ^13.2 -> satisfiable by typo3/cms-backend[v13.2.1, v13.3.0].