diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index ec9526b..01427c8 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -4,6 +4,13 @@ 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).
 
+## [0.4.2] - 2020-05-18
+### Added
+- Support for `bmp` image files
+### Fixed
+- Wrong type reference in colony.colonies_from_timepoints
+### Changed
+- `image_file._load_image` will now retry once if it fails
 ## [0.4.1] - 2020-05-11
 ### Added
 - Dockerfile and utility scripts
diff --git a/setup.py b/setup.py
index d7f520a..9fb6e94 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@ def read(*names, **kwargs):
 setup(
     python_requires = ">=3.7",
     name = "colonyscanalyser",
-    version = "0.4.1",
+    version = "0.4.2",
     description = "An image analysis tool for measuring microorganism colony growth",
     long_description = "%s\n%s" % (
         re.compile("^.. start-badges.*^.. end-badges", re.M | re.S).sub("", read("README.md")),