diff --git a/packaging/__about__.py b/packaging/__about__.py
index 415a21a9..509930fe 100644
--- a/packaging/__about__.py
+++ b/packaging/__about__.py
@@ -18,7 +18,7 @@
 __summary__ = "Core utilities for Python packages"
 __uri__ = "https://github.com/pypa/packaging"
 
-__version__ = "20.2"
+__version__ = "20.3.dev0"
 
 __author__ = "Donald Stufft and individual contributors"
 __email__ = "donald@stufft.io"