diff --git a/README.md b/README.md
index 072f6cd..1c7e8c2 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ Monstra is a modern and lightweight Content Management System.
 
 ## System Requirements
 Operation system: Unix, Linux, Windows, Mac OS   
-Middleware: PHP 5.2.3 or higher with PHP's [SimpleXML module](http://php.net/simplexml) and [Multibyte String module](http://php.net/mbstring)   
+Middleware: PHP 5.3.0 or higher with PHP's [SimpleXML module](http://php.net/simplexml) and [Multibyte String module](http://php.net/mbstring)   
 Webserver: Apache with [Mod Rewrite](http://httpd.apache.org/docs/current/mod/mod_rewrite.html) or Ngnix with [Rewrite Module](http://wiki.nginx.org/HttpRewriteModule)   
 
 ## Steps to Install
diff --git a/engine/_init.php b/engine/_init.php
index e551bd1..ea87f82 100644
--- a/engine/_init.php
+++ b/engine/_init.php
@@ -1,10 +1,10 @@
 <?php defined('MONSTRA_ACCESS') or die('No direct script access.');
 
 /**
- *  Monstra requires PHP 5.2.3 or greater
+ *  Monstra requires PHP 5.3.0 or greater
  */
-if (version_compare(PHP_VERSION, "5.2.3", "<")) {
-    exit("Monstra requires PHP 5.2.3 or greater.");
+if (version_compare(PHP_VERSION, "5.3.0", "<")) {
+    exit("Monstra requires PHP 5.3.0 or greater.");
 }
 
 /**