diff --git a/docs/installation/requirements.rst b/docs/installation/requirements.rst
index b35c1edfd..3f60d98a0 100644
--- a/docs/installation/requirements.rst
+++ b/docs/installation/requirements.rst
@@ -1,6 +1,6 @@
Requirements
============
-Imbo requires a web server (for instance `Apache `_, `Nginx `_ or `Lighttpd `_) running `PHP >= 5.6 `_ and the `Imagick `_ extension for PHP.
+Imbo requires a web server (for instance `Apache `_, `Nginx `_ or `Lighttpd `_) running `PHP >= 5.6 `_ and the `Imagick `_ extension for PHP (with at least ImageMagick 6.3.8).
You will also need a backend for storing image information, like for instance `MongoDB `_ or `MySQL `_. If you want to use MongoDB as a database and/or `GridFS `_ for storage, you will need to install the `Mongo `_ PECL extension, and if you want to use a :abbr:`RDBMS (Relational Database Management System)` like MySQL, you will need to install the `Doctrine Database Abstraction Layer `_.