PHP Fatal error: Allowed memory size of 1610612736 bytes exhausted

Ejecutando

composer update

en una máquina virtual Linux (Laravel Homestead), obtengo este error:

PHP Fatal error:  Allowed memory size of 1610612736 bytes exhausted (tried to allocate 72 bytes) in phar:///usr/local/bin/composer/src/Composer/DependencyResolver/RuleSetGenerator.php on line 64

Fatal error: Allowed memory size of 1610612736 bytes exhausted (tried to allocate 72 bytes) in phar:///usr/local/bin/composer/src/Composer/DependencyResolver/RuleSetGenerator.php on line 64

Check https://getcomposer.org/doc/articles/troubleshooting.md#memory-limit-errors for more info on how to handle out of memory errors.

Chrome version must be between 70 and 73

Executing the Dusk tests in the WordPress Polyglots Facilitator (Laravel Framework 6.18.31) using a Laravel Homestead virtual machine, I get this error:

 Tests\Browser\DownloadTest::testIosDownload
Facebook\WebDriver\Exception\SessionNotCreatedException: session not created: Chrome version must be between 70 and 73
  (Driver info: chromedriver=2.45.615279 (12b89733300bd268cff3b78fc76cb8f3a7cc44e5),platform=Linux 5.4.0-37-generic x86_64)