diff --git a/setup.py b/setup.py
index a0d8cb7..09a57eb 100644
--- a/setup.py
+++ b/setup.py
@@ -60,7 +60,7 @@
                                  '../lib/%s/libz.a' % lib_path]))
 
 setup(name='srilm',
-      version='1.0.0',
+      version='2.0.0',
       description='Python binding for SRI Language Modeling Toolkit implemented in Cython',
       author='Yi Su',
       author_email='nuance1979@hotmail.com',