<p>You can pass a <code>update_fields</code> param to the model <code>save</code> method. One interesting use for this is to avoid updating dates in time stamped models.</p>
<p><code>product.name = 'Name changed again'
product.save(update_fields=['name'])</code></p>
<p><a href="#specifying-which-fields-to-save">#specifying-which-fields-to-save</a></p>