WordPress is a free and open-source content management system based on PHP and MySQL. More than 30% of the websites in world use wordpress as CMS. Due to its high usage, it has a lot of themes and plugins which update very often. What if these updates are not good for us? In this presentation we will learn how to keep WordPress and its themes up to date but also to keep our design and functionality up and running without loosing the custom modifications we have made.