سلام خدمت استاد عزیز بنده از php8 استفاده میکنم و وقتی پکیج phpunit رو نصب میکنم ارور میده

InvalidArgumentException]

 Package phpunit/phpunit at version 9 has requirements incompatible with your PHP version, PHP extensions and Co  

 mposer version:                                                                                                  

   - phpunit/phpunit 9.0.0 requires php ^7.3 which does not match your installed version 8.0.10.