diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2777628c..31fda37d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [9.0.0]
+### Changed
+- **BREAKING:** Disallow importing from `./dist` paths ([#147](https://github.com/MetaMask/key-tree/pull/147))
+- Export `mnemonicPhraseToBytes` and `createBip39KeyFromSeed` ([#149](https://github.com/MetaMask/key-tree/pull/149))
+
+### Fixed
+- Add support for Node.js with ESM ([#147](https://github.com/MetaMask/key-tree/pull/147))
+- Remove `postinstall` script ([#146](https://github.com/MetaMask/key-tree/pull/146))
+  - This caused installation to fail.
+
 ## [8.0.0]
 ### Changed
 - **BREAKING:** Build the package as both CJS and ESM ([#140](https://github.com/MetaMask/key-tree/pull/139))
@@ -143,7 +153,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Initial release.
 
-[Unreleased]: https://github.com/MetaMask/key-tree/compare/v8.0.0...HEAD
+[Unreleased]: https://github.com/MetaMask/key-tree/compare/v9.0.0...HEAD
+[9.0.0]: https://github.com/MetaMask/key-tree/compare/v8.0.0...v9.0.0
 [8.0.0]: https://github.com/MetaMask/key-tree/compare/v7.1.1...v8.0.0
 [7.1.1]: https://github.com/MetaMask/key-tree/compare/v7.1.0...v7.1.1
 [7.1.0]: https://github.com/MetaMask/key-tree/compare/v7.0.0...v7.1.0
diff --git a/package.json b/package.json
index 9003374a..12deded6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@metamask/key-tree",
-  "version": "8.0.0",
+  "version": "9.0.0",
   "description": "An interface over BIP-32 and BIP-39 key derivation paths",
   "homepage": "https://github.com/MetaMask/key-tree#readme",
   "bugs": {