diff --git a/CHANGELOG.md b/CHANGELOG.md
index 34bea9b..0b6c425 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@ 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
+## [0.4.0] - 2020-01-15
 ### Added
 - Unicode normalization (enable with `--unsafe-fixes`, see README.md)
 
diff --git a/csv_metadata_quality/version.py b/csv_metadata_quality/version.py
index a9febb4..6cc293e 100644
--- a/csv_metadata_quality/version.py
+++ b/csv_metadata_quality/version.py
@@ -1 +1 @@
-VERSION = "0.3.1"
+VERSION = "0.4.0"
diff --git a/setup.py b/setup.py
index b8fd990..902dc59 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@ install_requires = [
 
 setuptools.setup(
     name="csv-metadata-quality",
-    version="0.3.1",
+    version="0.4.0",
     author="Alan Orth",
     author_email="aorth@mjanja.ch",
     description="A simple, but opinionated CSV quality checking and fixing pipeline for CSVs in the DSpace ecosystem.",