package.config update does not update the references : <p>I have multiple projects referencing the same NuGet Package. When I got latest code, I realized that one of the projects had an updated package.config and also updated reference to the Dll that is provided by that package.</p>

<p>Now, I also updated package.config on other prjects hoping the as soon as I do an upgrade on that NuGet engine will see that and fetch me new DLLs. Well, it did not happen. After that I tried following things and none of them worked:</p>

<ol>
<li>Deleting the old version of DLL and then doing Restore package</li>
<li>Deleting the packages folder, restarting my VS 2015 and restoring the package</li>
</ol>

<p>Also, funny thing is that when I go to Manage Nuget Packages and look at the package for which I need new DLL, it shows that it is already at new version and I do not need to upgrade it.</p>

<p>Is there any ways I can get NuGet engine to upgrade these packages?</p>
