diff --git a/CHANGELOG.md b/CHANGELOG.md
index 87e33c543e6126024504687e945bfb9bb41b4148..f1a1f00586bda96fc0fbcd693953d02e1593459f 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 ###
+
 ## [0.5.0] - 2023-03-28 ##
 (Florian Spreckelsen)
 
diff --git a/setup.cfg b/setup.cfg
index 0323d979854656d33e29cd760113fcb259a77f6e..cb5267e17d506ef32645b4eb7c547c38b5059a8a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = caoscrawler
-version = 0.5.0
+version = 0.5.1
 author = Alexander Schlemmer
 author_email = alexander.schlemmer@ds.mpg.de
 description = A new crawler for caosdb
diff --git a/src/doc/conf.py b/src/doc/conf.py
index 544f7292a766d59891d23235bb380ed90ce0d226..2ce47193e35fd9e0ba072ee8a3c047194715de2e 100644
--- a/src/doc/conf.py
+++ b/src/doc/conf.py
@@ -33,10 +33,10 @@ copyright = '2021, MPIDS'
 author = 'Alexander Schlemmer'
 
 # The short X.Y version
-version = '0.5.0'
+version = '0.5.1'
 # The full version, including alpha/beta/rc tags
 # release = '0.5.2-rc2'
-release = '0.5.0'
+release = '0.5.1-dev'
 
 
 # -- General configuration ---------------------------------------------------