diff --git a/CHANGELOG.md b/CHANGELOG.md
index d54f799..d40150c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,15 +3,17 @@
 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).
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html) after the 1.0.0 release.
 
-## Unreleased
+## 0.4.0 - 2022-02-19
 
 ### Added
 
--   Added `get_devices_by_type` to `Room` entity
--   Add way to get entity type easily
--   Improve entity creation and visibility for unsupported entities
+-   Added `get_devices_by_type` to `Room` entity (#102)
+-   Add way to get entity type easily  (#102)
+-   Improve entity creation and visibility for unsupported entities (#107)
+-   Improve token refresh (#131)
+-   Improve OAuth layer (#133)
 
 ## 0.3.1 - 2021-10-15
 
diff --git a/pyproject.toml b/pyproject.toml
index e6f013b..3b935eb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "iolite-client"
-version = "0.3.1"
+version = "0.4.0"
 description = "API client for interacting with IOLite's remote API"
 authors = ["Malachi Soord <me@malachisoord.com>"]
 license = "MIT"