diff --git a/CHANGELOG.md b/CHANGELOG.md
index 999121e..c5cdaea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,13 @@ 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).
 
+## [Unreleased]
+
+## [0.4.0] - 2021-11-06
+
+- Added "completed" state
+- Updated to be compatible with asynq v0.19
+
 ## [0.3.2] - 2021-10-22
 
 - (ui): Fixed build
diff --git a/README.md b/README.md
index 135c11f..48873a8 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ Asynqmon is both a library that you can include in your web application, as well
 
 | Asynq version  | WebUI (asynqmon) version |
 | -------------- | ------------------------ |
+| 0.19.x         | 0.4.x                    |
 | 0.18.x         | 0.2.x, 0.3.x             |
 | 0.16.x, 0.17.x | 0.1.x                    |