Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires pestphp/pest-plugin-laravel ^2.3.0 -> satisfiable by pestphp/pest-plugin-laravel[v2.3.0, 2.x-dev]. - pestphp/pest-plugin-laravel[v2.3.0, ..., 2.x-dev] require pestphp/pest ^2.33.6 -> found pestphp/pest[v2.33.6, ..., 2.x-dev] but it conflicts with your root composer.json require (^1.21). Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.