diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8ec8ce5..db1b44a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ All notable changes to this project are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html) (as of version 2.0.11).
 
+## [Unreleased]
+
 ## [3.0.2] - 2024-06-24
 
 ### Changed
diff --git a/src/ted2zim/__about__.py b/src/ted2zim/__about__.py
index 131942e..a1e7aaa 100644
--- a/src/ted2zim/__about__.py
+++ b/src/ted2zim/__about__.py
@@ -1 +1 @@
-__version__ = "3.0.2"
+__version__ = "3.0.3-dev0"