diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0b79ba1..d6b95a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,9 +5,16 @@ 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]
-[Unreleased]: https://github.com/ISA-Tools/mzml2isa/compare/v1.0.3...HEAD
+[Unreleased]: https://github.com/ISA-Tools/mzml2isa/compare/v1.0.4...HEAD
 
 
+## [v1.0.4] - 2021-12-14
+[v1.0.4]: https://github.com/ISA-Tools/mzml2isa/compare/v1.0.3...v1.0.4
+### Fixed
+- Allow higher versions of `openpyxl` to be installed ([#46](https://github.com/ISA-tools/mzml2isa/pull/46)).
+### Changed
+- Added support for Python 3.9.
+
 
 ## [v1.0.3] - 2020-04-01
 [v1.0.3]: https://github.com/ISA-Tools/mzml2isa/compare/v1.0.2...v1.0.3
@@ -29,12 +36,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Bumped `pronto` requirement to `0.12.0`.
 - Bumped `fs` requirement to `2.4.0`.
 
+
 ## [v1.0.1] - 2019-01-06
 [v1.0.1]: https://github.com/ISA-Tools/mzml2isa/compare/v1.0.0...v1.0.1
 ### Changed
 - Added `fs` version `2.2.0` to supported `fs` versions.
 - Bumped `pronto` requirement to `0.11.0`
 
+
 ## [v1.0.0] - 2018-10-16
 [v1.0.0]: https://github.com/ISA-Tools/mzml2isa/compare/v0.5.1...v1.0.0
 ### Added
@@ -50,4 +59,3 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Updated local `psi-ms.obo` with newer version without dead links.
 - Pinned dependencies in `setup.cfg`.
 - Fixed crash on missing `Spectrum representation`.
-
diff --git a/README.rst b/README.rst
index 4bca87d..5811771 100644
--- a/README.rst
+++ b/README.rst
@@ -3,7 +3,7 @@
 
 Extract metadata from `mzML` and `imzML` files and write them to an ISA-Tab document.
 
-|Version| |Py versions| |Git| |Bioconda| |Build Status (Travis)| |Build Status (AppVeyor)| |License| |RTD doc| |DOI| |Paper|
+|Version| |Py versions| |Git| |Bioconda| |Build Status (Actions)| |Build Status (AppVeyor)| |License| |RTD doc| |DOI| |Paper|
 
 
 Overview
diff --git a/mzml2isa/__init__.py b/mzml2isa/__init__.py
index bc39ee1..3e7f9e1 100644
--- a/mzml2isa/__init__.py
+++ b/mzml2isa/__init__.py
@@ -35,7 +35,7 @@
 
 __author__ = 'Thomas Lawson, Martin Larralde'
 __credits__ = 'Thomas Lawson, Martin Larralde, Ralf Weber, Reza Salek, Ken Haug, Christoph Steinbeck'
-__version__ = '1.0.3'
+__version__ = '1.0.4'
 __license__ = 'GPLv3'
 
 try: