I've solved the issue just using fakerphp/faker package instead (https://github.com/fakerphp/faker)

  1. Remove the old faker package fzaninotto/faker
    1.1. > composer remove vendor/fzaninotto/faker
    1.2. Removed 'fzaninotto/faker' from composer.json

  2. Installed the new faker package
    > composer require fakerphp/faker

And all the code with the faker I've used before works fine with the newly installed package!!