diff --git a/CHANGELOG.md b/CHANGELOG.md
index ef6a35e..69c08f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,32 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+<a name="4.0.0"></a>
+# [4.0.0](https://github.com/yargs/cliui/compare/v3.2.0...v4.0.0) (2017-12-18)
+
+
+### Bug Fixes
+
+* downgrades strip-ansi to version 3.0.1 ([#54](https://github.com/yargs/cliui/issues/54)) ([5764c46](https://github.com/yargs/cliui/commit/5764c46))
+* set env variable FORCE_COLOR. ([#56](https://github.com/yargs/cliui/issues/56)) ([7350e36](https://github.com/yargs/cliui/commit/7350e36))
+
+
+### Chores
+
+* drop support for node < 4 ([#53](https://github.com/yargs/cliui/issues/53)) ([b105376](https://github.com/yargs/cliui/commit/b105376))
+
+
+### Features
+
+* add fallback for window width ([#45](https://github.com/yargs/cliui/issues/45)) ([d064922](https://github.com/yargs/cliui/commit/d064922))
+
+
+### BREAKING CHANGES
+
+* officially drop support for Node < 4
+
+
+
 <a name="3.2.0"></a>
 # [3.2.0](https://github.com/yargs/cliui/compare/v3.1.2...v3.2.0) (2016-04-11)
 
diff --git a/package.json b/package.json
index 1bb97f4..e91f9f3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cliui",
-  "version": "3.2.0",
+  "version": "4.0.0",
   "description": "easily create complex multi-column command-line-interfaces",
   "main": "index.js",
   "scripts": {