diff --git a/README.md b/README.md
index 7ccc804..511e284 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Very simple and easy When I Work API wrapper, for PHP.
 
 Complex wrappers are for noobs. This lets you access the When I Work API using the docs as directly as possible.
 
-Requires PHP 5.3 and a pulse.
+Requires PHP 5.4 and a pulse.
 
 Installation
 ------------