diff --git a/README.md b/README.md
index 91d8583..8315066 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ This repository contains some of the lighting effects implemented for the [Unity
 System requirements
 -------------------
 - DX11
-- Unity 5.4.1
+- Tested in Unity 5.4.1, 5.4.2 and 5.5b10
 
 Usage notes
 -----------