title: Where can I find a NuGet package for upgrading to System.Web.Http v5.0.0.0?
body: <p>Just upgraded an ASP.NET MVC4 project to use Unity.WebApi version 5.0.0.0 and it requires System.Web.Http v 5.0.0.0 as per the following error:</p>
  <pre><code>Assembly 'Unity.WebApi, Version=5.1.0.0, Culture=neutral, PublicKeyToken=43da31bc42a85347' uses 'System.Web.Http, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' which has a higher version than referenced assembly 'System.Web.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'   
  </code></pre>
  <p>I am currently referencing System.Web.Http v4.0 but have the following NuGet packages upgraded to their respective latest versions:</p>
  <ul>
  <li><p>ANTLRv3</p>
  </li>
  <li><p>Microsoft ASP.NET Universal Providers</p>
  </li>
  <li><p>Microsoft.Web.Infrastructure</p>
  </li>
  <li><p>Microsoft ASP.NET MVC</p>
  </li>
  <li><p>Microsoft ASP.NET Razor</p>
  </li>
  <li><p>Microsoft ASP.NET Universal Providers Core Libraries</p>
  </li>
  <li><p>Microsoft ASP.NET Universal Providers</p>
  </li>
  <li><p>Microsoft ASP.NET Web API 2 Client</p>
  </li>
  <li><p>Microsoft ASP.NET Web API 2 Core</p>
  </li>
  <li><p>Microsoft ASP.NET Web API 2 Web Host</p>
  </li>
  <li><p>Microsoft ASP.NET Web API 2</p>
  </li>
  <li><p>Microsoft ASP.NET Web Page</p>
  </li>
  <li><p>Microsoft.Web.Infrastructure</p>
  </li>
  <li><p>WebGrease</p>
  <p>via NuGet.  I have not listed relevant JavaScript libraries such as Micrososft.jQuery.Unobtrusive Validation, etc.</p>
  </li>
  </ul>
  <p>What is the NuGet package to upgrade System.Web.Http or do I have to do this manually?</p>