Bump for development
diff --git a/docs/changes.rst b/docs/changes.rst
index 05debea..6cf7380 100644
--- a/docs/changes.rst
+++ b/docs/changes.rst
@@ -1,6 +1,10 @@
Release History
===============
+15.3.0 (unreleased)
+-------------------
+
+
15.2.0 (2018-03-21)
-------------------
diff --git a/virtualenv.py b/virtualenv.py
index 41c316c..90e9531 100755
--- a/virtualenv.py
+++ b/virtualenv.py
@@ -37,7 +37,7 @@
except ImportError:
import configparser as ConfigParser
-__version__ = "15.2.0"
+__version__ = "15.3.0.dev0"
virtualenv_version = __version__ # legacy
if sys.version_info < (2, 6):
