composer require spatie/laravel-backup

I keep getting errors when I type composer require spatie/laravel-backup

Nessrines-MacBook-Pro-2:tfw nessrine$ composer require spatie/laravel-backup
Using version ^4.16 for spatie/laravel-backup
./composer.json has been updated
> php artisan clear-compiled
The compiled services file has been removed.
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
    - Installation request for spatie/laravel-backup ^4.16 -> satisfiable by spatie/laravel-backup[4.16.0].
    - Conclusion: remove spatie/db-dumper 1.5.1
    - Conclusion: don't install spatie/db-dumper 1.5.1
    - spatie/laravel-backup 4.16.0 requires spatie/db-dumper ^2.6 -> satisfiable by spatie/db-dumper[2.6.0, 2.6.1, 2.7.0].
    - Can only install one of: spatie/db-dumper[2.6.0, 1.5.1].
    - Can only install one of: spatie/db-dumper[2.6.1, 1.5.1].
    - Can only install one of: spatie/db-dumper[2.7.0, 1.5.1].
    - Installation request for spatie/db-dumper (locked at 1.5.1) -> satisfiable by spatie/db-dumper[1.5.1].


Installation failed, reverting ./composer.json to its original content.
Nessrines-MacBook-Pro-2:tfw nessrine$ composer require spatie/laravel-backup’

via Chebli Mohamed