{
  "name": "risan/oauth1",
  "type": "library",
  "description": "OAuth version 1.0 client library for PHP",
  "keywords": ["oauth", "oauth1", "authorization", "authentication", "twitter", "tumblr", "upwork"],
  "homepage": "https://github.com/risan/oauth1",
  "license": "MIT",
  "authors": [
    {
      "name": "Risan Bagja Pradana",
      "email": "risanbagja@gmail.com",
      "homepage": "https://github.com/risan",
      "role": "Developer"
    }
  ],
  "autoload": {
    "psr-4": {
      "OAuth1\\": "src/"
    }
  },
  "require": {
    "guzzlehttp/guzzle": "^6.1"
  },
  "require-dev": {
    "phpunit/phpunit": "~4.8"
  }
}

{
    "name": "risan/oauth1",
    "type": "library",
    "description": "OAuth 1.0 client library for PHP",
    "keywords": [
        "oauth",
        "oauth1",
        "authorization",
        "authentication",
        "twitter",
        "tumblr",
        "upwork"
    ],
    "homepage": "https://github.com/risan/oauth1",
    "license": "MIT",
    "authors": [
        {
            "name": "Risan Bagja Pradana",
            "email": "risanbagja@gmail.com",
            "homepage": "https://github.com/risan",
            "role": "Developer"
        }
    ],
    "autoload": {
        "psr-4": {
            "OAuth1\\": "src/"
        }
    },
    "require": {
        "guzzlehttp/guzzle": "~6.2"
    },
    "require-dev": {
        "phpunit/phpunit": "~6.0"
    }
}

Update the guzzle and phpunit version.
:sparkles: Update the guzzle and phpunit version.
