Can you please check the dependencies of this package ?

From package.xml
 <dependencies>
  <required>
   <php>
    <min>5.3.3</min>
   </php>
   <pearinstaller>
    <min>1.4.0</min>
   </pearinstaller>
   <package>
    <name>Guzzle</name>
    <channel>guzzlephp.org/pear</channel>
    <min>3.0.3</min>
   </package>
   <extension>
    <name>curl</name>
   </extension>
  </required>
 </dependencies>

So php-pear(guzzlephp.org/pear/Guzzle) >= 3.0.3

New version 2.4.10 is released.

From composer.json
    "require": {
        "php": ">=5.3.3",
        "guzzle/guzzle": "~3.7.0"
    },

So 
php-pear(guzzlephp.org/pear/Guzzle) >= 3.7.0
php-pear(guzzlephp.org/pear/Guzzle) <  3.8

And    "suggest": {
        "doctrine/cache": "Adds support for caching of credentials and responses",
        "ext-apc": "Allows service description opcode caching, request and response caching, and credentials caching",
        "ext-openssl": "Allows working with CloudFront private distributions and verifying received SNS messages",
        "monolog/monolog": "Adds support for logging HTTP requests and responses",
        "symfony/yaml": "Eases the ability to write manifests for creating jobs in AWS Import/Export"
   }

So php-Monolog and php-symfony2-Yaml (v2), but no need of php-symfony2-YAML (v1)