diff --git a/README.md b/README.md
index f5e9aa8..21384d7 100644
--- a/README.md
+++ b/README.md
@@ -19,3 +19,5 @@ Find the first video of the tutorial below:
 
 The Glacier Image Velocimetry (GIV) toolbox - Zero to ice flow in 10 minutes:
 [![GIV tutorial 1: Zero to ice flow in 10 minutes](https://img.youtube.com/vi/mu15GX2jy20/0.jpg)](https://youtu.be/mu15GX2jy20 "GIV tutorial 1: Zero to ice flow in 10 minutes")
+
+Note the mac (apple) version is not currently up to date. Send me an email if you need a copy and do not have access to MATLAB.