diff --git a/README.rst b/README.rst
index 57c13b3a..5ca620fd 100644
--- a/README.rst
+++ b/README.rst
@@ -6,7 +6,7 @@ Ryu provides software components with well defined API that make it
 easy for developers to create new network management and control
 applications. Ryu supports various protocols for managing network
 devices, such as OpenFlow, Netconf, OF-config, etc. About OpenFlow,
-Ryu supports fully 1.0, 1.2, 1.3 and Nicira Extensions.
+Ryu supports fully 1.0, 1.2, 1.3, 1.4 and Nicira Extensions.
 
 All of the code is freely available under the Apache 2.0 license. Ryu
 is fully written in Python.