diff --git a/CHANGELOG.md b/CHANGELOG.md
index 787ed22c8f6acadf52a88c6d838f551d43060496..4a88702586ec5ba88e3f3702dc343444db5e3e51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,22 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased] ##
+
+### Added ###
+
+### Changed ###
+
+### Deprecated ###
+
+### Removed ###
+
+### Fixed ###
+
+### Security ###
+
+### Documentation ###
+
 ## [0.15.2] - 2025-02-28 ##
 
 ### Fixed ###
diff --git a/src/doc/conf.py b/src/doc/conf.py
index a5e925bed25a01d7b3c01c656951899ea9ca0d8b..f1ffe549b7353ab4c36b0bcb9f197ece6a46f66c 100644
--- a/src/doc/conf.py
+++ b/src/doc/conf.py
@@ -26,9 +26,9 @@ copyright = '2022 - 2024, IndiScale GmbH'
 author = 'Daniel Hornung'
 
 # The short X.Y version
-version = '0.15.2'
+version = '0.15.3'
 # The full version, including alpha/beta/rc tags
-release = '0.15.2'
+release = '0.15.3-SNAPSHOT'
 
 
 # -- General configuration ---------------------------------------------------