diff --git a/README.md b/README.md
index be4bffd..f55c2cf 100644
--- a/README.md
+++ b/README.md
@@ -23,4 +23,4 @@ And navigate to `localhost:3000` and chat !
 
 
 <a href="http://www.youtube.com/watch?feature=player_embedded&v=8VkhbBQGU8k" target="_blank"><img src="http://img.youtube.com/vi/8VkhbBQGU8k/0.jpg" 
-alt="IMAGE ALT TEXT HERE" width="240" height="180" border="10" /></a>
+alt="IMAGE ALT TEXT HERE" width="640" height="360" border="10" /></a>