diff --git a/INSTALL b/INSTALL
index b2bdc86..f3d3085 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,6 +1,6 @@
 INSTALLATION
 
-The script requires PHP > 4.1 and a MySQL database.
+The script requires PHP 5.2 or newer and a MySQL database of version 5.5 or newer.
 
 * The file forum.zip contains a folder with the script files ("forum").
 * Load up the complete folder to your server.