diff --git a/yii/requirements/requirements.php b/yii/requirements/requirements.php
index 96ae285..a703fde 100644
--- a/yii/requirements/requirements.php
+++ b/yii/requirements/requirements.php
@@ -7,9 +7,9 @@ return array(
 	array(
 		'name' => 'PHP version',
 		'mandatory' => true,
-		'condition' => version_compare(PHP_VERSION, '5.3.0', '>='),
+		'condition' => version_compare(PHP_VERSION, '5.3.3', '>='),
 		'by' => '<a href="http://www.yiiframework.com">Yii Framework</a>',
-		'memo' => 'PHP 5.3.0 or higher is required.',
+		'memo' => 'PHP 5.3.3 or higher is required.',
 	),
 	array(
 		'name' => 'Reflection extension',