title: apt-get update fails on debian on google compute engine
body: <p>Updating repositories information and installing packages is failing on a debian instance on google-compute-engine with the following error:</p>
  
  <pre><code>E: Release file for http://gce_debian_mirror.storage.googleapis.com/dists/wheezy-updates/Release is expired (invalid since 5h 44min 5s). Updates for this repository will not be applied.
  </code></pre>
  
  <p>It seems that there is a problem with the repository (or I am missing something).</p>
  
  <p>Thanks in advance.</p>