diff --git a/Changelog.md b/Changelog.md
index d85fd5a..5bc5453 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## master (unreleased)
+
+Nothing here yet.
+
 ## v10.2.0 (2020-06-26)
 
 - Bugfix: setting *Consciência Negra day* as a non-holiday by default for Brazilian calendars, thx to @edniemeyer (#516).
diff --git a/setup.py b/setup.py
index 6d294f9..7d7728c 100644
--- a/setup.py
+++ b/setup.py
@@ -28,7 +28,7 @@ REQUIREMENTS = [
     'pyluach',
     'setuptools>=1.0',
 ]
-version = '10.2.0'
+version = '10.3.0.dev0'
 __VERSION__ = version
 
 params = dict(