diff --git a/README.md b/README.md
index 5da8f3ea4..f47ec6029 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,9 @@ Introduction
 Open Source Point of Sale is a web based point of sale system written in the PHP language. It uses MySQL as the data storage back-end and has a simple user interface.
 
 This is the experimental vs 3.0.0 based on Bootstrap 3 using Bootswatch theme Flatly as default.
-This version is currently under development and an evolution of vs2.4 with CI3.
+This version is currently under development and an evolution of vs 2.4 with CI3.
+
+This version requires at least PHP 5.5.
 
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