diff --git a/README.md b/README.md
index a6f59e372f..61cb4de288 100644
--- a/README.md
+++ b/README.md
@@ -119,7 +119,7 @@ Main features
 Build Requirements
 ------------------
 
-* Mac OS X 10.7+, Xcode 4.6+
+* Mac OS X 10.7+, Xcode 5.1+
 * or Ubuntu 12.10+, CMake 2.6+
 * or Windows 7+, VS 2012+
 * Python 2.7.5