diff --git a/CHANGELOG.md b/CHANGELOG.md
index cad7bcb8..74e30e1d 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]
 
+## [9.1.1]
+### Fixed
+- Fix ESM imports ([#177](https://github.com/MetaMask/key-tree/pull/177))
+
 ## [9.1.0]
 ### Added
 - Add support for Cardano key derivation according to CIP3-Icarus ([#158](https://github.com/MetaMask/key-tree/pull/158), [#170](https://github.com/MetaMask/key-tree/pull/170), [#171](https://github.com/MetaMask/key-tree/pull/171), [#172](https://github.com/MetaMask/key-tree/pull/172))
@@ -162,7 +166,8 @@ 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/v9.1.0...HEAD
+[Unreleased]: https://github.com/MetaMask/key-tree/compare/v9.1.1...HEAD
+[9.1.1]: https://github.com/MetaMask/key-tree/compare/v9.1.0...v9.1.1
 [9.1.0]: https://github.com/MetaMask/key-tree/compare/v9.0.0...v9.1.0
 [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
diff --git a/package.json b/package.json
index 19f9aeb9..6974c346 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@metamask/key-tree",
-  "version": "9.1.0",
+  "version": "9.1.1",
   "description": "An interface over BIP-32 and BIP-39 key derivation paths",
   "homepage": "https://github.com/MetaMask/key-tree#readme",
   "bugs": {