diff --git a/README.md b/README.md
index 77d76e9b..c95273b6 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Official website: http://my-aac.org
 
 ### REQUIREMENTS
 
-	- PHP 5.1.0 or later
+	- PHP 5.2.0 or later
 	- MySQL database
 	- PDO PHP Extension
 	- XML PHP Extension