diff --git a/setup.py b/setup.py
index ad1947f..4903165 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 
 setup(
     name='plyxproto',
-    version='3.1.0',
+    version='3.1.0.dev0',
     description='xproto parser and processor',
     author='Dusan Klinec (original protobuf parser), Sapan Bhatia (xproto extensions), Zack Williams (maintenance), Scott Baker (maintenance)',
     author_email='sapan@opennetworking.org',