diff --git a/README b/README
index 12284cc..0d61491 100644
--- a/README
+++ b/README
@@ -12,8 +12,8 @@ This is pydkim 0.3.
 
 REQUIREMENTS
 
-Python 2.5 or later is required.
-The dnspython library (http://www.dnspython.org) library is required.
+ - Python 2.x >= 2.6, or Python 3.x >= 3.1.
+ - dnspython or pydns. dnspython is preferred if both are present.
 
 INSTALLATION