diff --git a/CHANGELOG.md b/CHANGELOG.md
index de363eb791697fcc53171b6e4d0694da1036e34a..5b792cc1fd53e5ccfb54b9d0d84ff248a3eb048d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,22 @@ 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 ###
+
 ## [0.15.1] - 2024-08-21 ##
 
 ### Deprecated ###
diff --git a/setup.py b/setup.py
index 6ad2d0b9ef1e4c07d6519562a0c75c72c51b5b75..4e136f6d8d915b2a4437c1d42a0af25b85f45c5b 100755
--- a/setup.py
+++ b/setup.py
@@ -46,10 +46,10 @@ from setuptools import find_packages, setup
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ########################################################################
 
-ISRELEASED = True
+ISRELEASED = False
 MAJOR = 0
 MINOR = 15
-MICRO = 1
+MICRO = 2
 # Do not tag as pre-release until this commit
 # https://github.com/pypa/packaging/pull/515
 # has made it into a release. Probably we should wait for pypa/packaging>=21.4
diff --git a/src/doc/conf.py b/src/doc/conf.py
index 7b127420c281e37e82ee0e64768ae831e30e2798..e5ead4a5015a606bf91f2e0009d7165f995206b5 100644
--- a/src/doc/conf.py
+++ b/src/doc/conf.py
@@ -29,10 +29,10 @@ copyright = '2023, IndiScale GmbH'
 author = 'Daniel Hornung'
 
 # The short X.Y version
-version = '0.15.1'
+version = '0.15.2'
 # The full version, including alpha/beta/rc tags
 # release = '0.5.2-rc2'
-release = '0.15.1'
+release = '0.15.2-dev'
 
 
 # -- General configuration ---------------------------------------------------