diff --git a/CHANGELOG.md b/CHANGELOG.md
index 922f020..6a15c4a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0]
+### Changed
+- **BREAKING**: Increase minimum node version to v10 ([#20](https://github.com/MetaMask/ethjs-util/pull/20))
+
 ## [0.3.0]
 ### Fixed
 - **BREAKING**: Add peerDependency @babel/runtime@^7.0.0 ([#14](https://github.com/MetaMask/ethjs-util/pull/14))
@@ -89,7 +93,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - linting
   - basic exports
 
-[Unreleased]: https://github.com/MetaMask/ethjs-util/compare/v0.3.0...HEAD
+[Unreleased]: https://github.com/MetaMask/ethjs-util/compare/v0.4.0...HEAD
+[0.4.0]: https://github.com/MetaMask/ethjs-util/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/MetaMask/ethjs-util/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/MetaMask/ethjs-util/compare/v0.1.6...v0.2.0
 [0.1.6]: https://github.com/MetaMask/ethjs-util/compare/v0.1.5...v0.1.6
@@ -102,4 +107,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [0.0.4]: https://github.com/MetaMask/ethjs-util/compare/v0.0.3...v0.0.4
 [0.0.3]: https://github.com/MetaMask/ethjs-util/compare/v0.0.2...v0.0.3
 [0.0.2]: https://github.com/MetaMask/ethjs-util/compare/v0.0.1...v0.0.2
-[0.0.1]: https://github.com/MetaMask/ethjs-util/releases/tag/v0.0.1
+[0.0.1]: https://github.com/MetaMask/ethjs-util/releases/tag/v0.0.1
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 7986a8a..a0dfe3a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@metamask/ethjs-util",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index a74450a..159df17 100644
--- a/package.json
+++ b/package.json
@@ -233,5 +233,5 @@
     "test:clean": "rimraf ./coverage",
     "test:lib": "mocha ./lib/tests/**/*.js -R spec --timeout 2000000"
   },
-  "version": "0.3.0"
+  "version": "0.4.0"
 }