diff --git a/README.md b/README.md
index 9f3fb2f9..60d9e6ab 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Official website: https://my-aac.org
 
 ### REQUIREMENTS
 
-	- PHP 5.3.3 or later
+	- PHP 5.5 or later
 	- MySQL database
 	- PDO PHP Extension
 	- XML PHP Extension
diff --git a/install/steps/3-requirements.php b/install/steps/3-requirements.php
index a5bc3955..208b4088 100644
--- a/install/steps/3-requirements.php
+++ b/install/steps/3-requirements.php
@@ -2,7 +2,7 @@
 defined('MYAAC') or die('Direct access not allowed!');
 
 /*
- * 
+ *
  * @param string $name
  * @param boolean $ok
  * @param mixed $info
@@ -22,7 +22,7 @@ function version_check($name, $ok, $info = '', $warning = false)
 $failed = false;
 
 // start validating
-version_check($locale['step_requirements_php_version'], (PHP_VERSION_ID >= 50303), PHP_VERSION);
+version_check($locale['step_requirements_php_version'], (PHP_VERSION_ID >= 50500), PHP_VERSION);
 foreach(array('images/guilds', 'images/houses', 'images/gallery') as $value)
 {
 	$is_writable = is_writable(BASE . $value);