Installation request for Laravel/passport ~4.0 -> satisfiable by Laravel/passport [4.0.x-dev, v4.0.0, v4.0.1, v4.0.2, v4.0.3].

这是我的composer.json

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": ">=7.0.0",
        "dingo/api": "2.0.0-alpha2",
        "fideloper/proxy": "~3.3",
        "gregwar/captcha": "^1.1",
        "laravel/framework": "5.5.*",
        "laravel/tinker": "~1.0"
    },
    "require-dev": {
        "filp/whoops": "~2.0",
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "~1.0",
        "phpunit/phpunit": "~6.0",
        "symfony/thanks": "^1.0"
    },
    "autoload": {
        "classmap": [
            "database/seeds",
            "database/factories"
        ],
        "psr-4": {
            "App\\": "app/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "Tests\\": "tests/"
        }
    },
    "extra": {
        "laravel": {
            "dont-discover": [
            ]
        }
    },
    "scripts": {
        "post-root-package-install": [
            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "@php artisan key:generate"
        ],
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover"
        ]
    },
    "replace": {
        "paragonie/random_compat": "9.99.99"
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    },
    "minimum-stability": "dev",
    "prefer-stable": true
}

我尝试着执行

composer require laravel/passport=~4.0

最后报错如下

mac$ composer require laravel/passport:~4.0
./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
    - Installation request for laravel/passport ~4.0 -> satisfiable by laravel/passport[4.0.x-dev, v4.0.0, v4.0.1, v4.0.2, v4.0.3].
    - Conclusion: remove laravel/laravel dev-master
    - laravel/framework v5.5.44 conflicts with laravel/framework[5.7.x-dev].
    - laravel/framework 5.7.x-dev conflicts with laravel/framework[v5.5.44].
    - laravel/framework 5.7.x-dev conflicts with laravel/framework[v5.5.44].
    - laravel/laravel dev-master requires laravel/framework 5.7.* -> satisfiable by laravel/framework[5.7.x-dev].
    - Installation request for laravel/laravel dev-master -> satisfiable by laravel/laravel[dev-master].
    - Installation request for laravel/framework (locked at v5.5.44, required as 5.5.*) -> satisfiable by laravel/framework[v5.5.44].

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