diff --git a/CHANGELOG.md b/CHANGELOG.md
index 710107f..57b759b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 0.4.1
+
+* Expand documentation and fix a few errors.
+* Clear timeout after acquiring a lock in `withTimeout`.
+* Thanks to AkatQuas and aryzing for their contributions.
+* Update dependencies.
+
 ## 0.4.0
 
 This is a full rewrite of the core implementation.
diff --git a/package.json b/package.json
index c885278..0e38bc4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "async-mutex",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "description": "A mutex for guarding async workflows",
   "scripts": {
     "lint": "eslint src/**/*.ts test/**/*.ts",