diff --git a/README.md b/README.md
index 575ef0a..7748012 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,8 @@
 
 ## Requirements
  * SilverStripe 2.4 or newer
-
+ * Database: MySQL, Postgres, SQLite or MSSQL 
+ * PHP 5.2 or newer (because of Zend_Date usage)
 
 ## Installation