diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 5e0fde168..ab5765890 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.3.0
+current_version = 0.3.1
 message = Bump version to {new_version}
 commit = True
 tag = True
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8539a6c8f..30227dace 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## Unreleased
+## [0.3.1] 2023-09-18
 
 ### Added
 
diff --git a/docs/conf.py b/docs/conf.py
index 5a0557bf0..e84ed90ba 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -20,7 +20,7 @@
 year = "2021"
 author = "Gramazio Kohler Research"
 copyright = "{0}, {1}".format(year, author)
-release = "0.3.0"
+release = "0.3.1"
 version = ".".join(release.split(".")[0:2])
 
 master_doc = "index"
diff --git a/src/compas_timber/__version__.py b/src/compas_timber/__version__.py
index 21b71a15e..18b2d7327 100644
--- a/src/compas_timber/__version__.py
+++ b/src/compas_timber/__version__.py
@@ -3,7 +3,7 @@
 __title__ = "compas_timber"
 __description__ = "COMPAS package for modeling, designing and fabricating timber assemblies."
 __url__ = "https://github.com/gramaziokohler/compas_timber"
-__version__ = "0.3.0"
+__version__ = "0.3.1"
 __author__ = "Gramazio Kohler Research"
 __author_email__ = "gramaziokohler@arch.ethz.ch"
 __license__ = "MIT license"