I am installating plivo api using composer on live server(digital ocean), which running command i getting some dependencies version mismatch errors. plivo required guzzle latest version, but guzzle is already installed in my laravel application but its version is old.What i need to do to resolve this error. please help me to resolve those. here is the composer.json
{
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"type": "project",
"require": {
    "laravel/framework": "5.0.*",
    "laracasts/flash": "^1.3",
    "fzaninotto/faker": "~1.4",
    "barryvdh/laravel-debugbar": "~2.0",
    "orchestra/imagine": "~3.0",
    "zendframework/zendsearch": "dev-master",
    "mmanos/laravel-search": "dev-master",
    "dimsav/laravel-translatable": "~5.0",
    "twilio/sdk": "*",
    "fillup/nexmo": "dev-master",
    "guzzlehttp/log-subscriber": "^1.0"
},
"require-dev": {
    "phpunit/phpunit": "~4.0",
    "phpspec/phpspec": "~2.1",
    "illuminate/html": "~5.0"
},
"autoload": {
    "classmap": [
        "database"
    ],
    "psr-4": {
        "App\\": "app/",
                    "Lib\\": "lib/"
    }
},
"autoload-dev": {
    "classmap": [
        "tests/TestCase.php"
    ]
},
"scripts": {
    "post-install-cmd": [
        "php artisan clear-compiled",
        "php artisan optimize"
    ],
    "post-update-cmd": [
        "php artisan clear-compiled",
        "php artisan optimize"
    ],
    "post-create-project-cmd": [
        "php -r \"copy('.env.example', '.env');\"",
        "php artisan key:generate"
    ]
},
"config": {
    "preferred-install": "dist"
}}
