$ composer require spatie/laravel-db-snapshots
Using version ^1.0 for spatie/laravel-db-snapshots
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - orchestra/testbench v3.4.6 requires symfony/css-selector ~3.2.0 -> satisfiable by symfony/css-selector[3.2.x-dev, v3.2.0, v3.2.0-BETA1, v3.2.0-RC1, v3.2.0-RC2, v3.2.1, v3.2.2, v3.2.3, v3.2.4, v3.2.5, v3.2.6] but these conflict with your requirements or minimum-stability
    - orchestra/testbench v3.4.5 requires symfony/css-selector ~3.2.0 -> satisfiable by symfony/css-selector[3.2.x-dev, v3.2.0, v3.2.0-BETA1, v3.2.0-RC1, v3.2.0-RC2, v3.2.1, v3.2.2, v3.2.3, v3.2.4, v3.2.5, v3.2.6] but these conflict with your requirements or minimum-stability
    - spatie/laravel-db-snapshots 1.0.0 requires orchestra/testbench ^3.4.5 -> satisfiable by orchestra/testbench[v3.4.5, v3.4.6].
    - Installation request for spatie/laravel-db-snapshots ^1.0 -> satisfiable by spatie/laravel-db-snapshots[1.0.0].


Installation failed, reverting ./composer.json to its original content.