{
    "name": "behat/mink-extension",
    "type": "behat-extension",
    "description": "Mink extension for Behat",
    "keywords": ["web", "test", "browser", "gui"],
    "homepage": "http://extensions.behat.org/mink",
    "license": "MIT",
    "authors": [
        {
            "name": "Konstantin Kudryashov",
            "email": "ever.zet@gmail.com"
        },
        {
            "name": "Christophe Coevoet",
            "email": "stof@notk.org"
        }
    ],

    "require": {
        "php":          ">=5.3.2",
        "behat/behat":  "^3.0.5",
        "behat/mink":   "^1.5",
        "symfony/config": "^2.7|^3.0|^4.0"
    },

    "require-dev": {
        "behat/mink-goutte-driver": "^1.1",
        "phpspec/phpspec":          "^2.0"
    },

    "autoload": {
        "psr-0": { "Behat\\MinkExtension": "src/" }
    },

    "extra": {
        "branch-alias": {
            "dev-master": "2.1.x-dev"
        }
    }
}

{
    "name": "behat/mink-extension",
    "type": "behat-extension",
    "description": "Mink extension for Behat",
    "keywords": ["web", "test", "browser", "gui"],
    "homepage": "http://extensions.behat.org/mink",
    "license": "MIT",
    "authors": [
        {
            "name": "Konstantin Kudryashov",
            "email": "ever.zet@gmail.com"
        },
        {
            "name": "Christophe Coevoet",
            "email": "stof@notk.org"
        }
    ],

    "require": {
        "php":          ">=5.3.2",
        "behat/behat":  "^3.0.5",
        "behat/mink":   "^1.5",
        "symfony/config": "^2.7|^3.0|^4.0"
    },

    "require-dev": {
        "behat/mink-goutte-driver": "^1.1",
        "phpspec/phpspec":          "^2.0"
    },

    "autoload": {
        "psr-0": { "Behat\\MinkExtension": "src/" }
    },

    "extra": {
        "branch-alias": {
            "dev-master": "2.x-dev"
        }
    }
}

Fix the branch alias for the master branch
Fix the branch alias for the master branch