diff --git a/README.md b/README.md
index 39f3b4d..911c1bb 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ PHP Client for [IntaroCRM REST API](http://docs.intarocrm.ru/rest-api/).
 Requirements
 ------------
 
-* PHP version 5.2 and above
+* PHP version 5.3 and above
 * PHP-extension CURL
 
 Installation