diff --git a/README b/README
index f898505..719018f 100644
--- a/README
+++ b/README
@@ -3,12 +3,14 @@ This code is distributed under the LGPL 2.1 license.
 Requirements:
 -------------
 
-javabridge>=1.0.11
-numpy        
-glob
-pydot
-pyparsing
-GraphViz
+Python 2.7 (does not work with Python 3)
+-javabridge>=1.0.11
+-numpy 
+-pydot
+-pyparsing
+-GraphViz
+
+Oracle JDK 1.7+
 
 Installation:
 -------------