diff --git a/README b/README
index a5dd8a3..634d769 100644
--- a/README
+++ b/README
@@ -30,14 +30,14 @@ If you want to use the OPDS feed don't forget to specify feed.php at the end of
 
 = Prerequisites =
 
-1. 	PHP 5.3, 5.4, 5.5 or hhvm with GD image processing, Libxml, Json & SQLite3 support.
+1. 	PHP 5.3, 5.4, 5.5, 5.6 or hhvm with GD image processing, Libxml, Intl, Json & SQLite3 support.
 2. 	A web server with PHP support. I only tested with various version of Nginx.
     Other people reported it working with Apache and Cherokee. You can also use PHP
     embedded server (https://github.com/seblucas/cops/wiki/Howto---PhpEmbeddedServer)
 3.  The path to a calibre library (metadata.db, format, & cover files).
 
 On any Debian base Linux you can use :
- aptitude install php5-gd php5-sqlite php5-json
+ aptitude install php5-gd php5-sqlite php5-json php5-intl
 
 On Centos you may have to add :
  yum install php-xml