diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1c7dda3b..64fd1969b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 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.
 
+### [0.9.1](https://github.com/mjolnirjs/stated-bean/compare/v0.9.0...v0.9.1) (2020-04-14)
+
+
+### Features
+
+* effect observable performance ([#158](https://github.com/mjolnirjs/stated-bean/issues/158)) ([c569dc5](https://github.com/mjolnirjs/stated-bean/commit/c569dc5db777de2cfb42dfb4847d6c24dacf3f1a))
+
 ## [0.9.0](https://github.com/mjolnirjs/stated-bean/compare/v0.8.6...v0.9.0) (2020-03-07)
 
 ### [0.8.6](https://github.com/mjolnirjs/stated-bean/compare/v0.8.5...v0.8.6) (2020-02-11)