diff --git a/setup.py b/setup.py
index e2bc6f10..26ff4ce4 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 from distutils.core import Extension
 
 DISTNAME = 'gridx-egret'
-VERSION = '0.5.2-dev'
+VERSION = '0.5.2.dev0'
 PACKAGES = find_packages()
 EXTENSIONS = []
 DESCRIPTION = 'EGRET: Electrical Grid Research and Engineering Tools.'