diff --git a/CHANGELOG.md b/CHANGELOG.md
index e7636b1..46cbec5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.1.1] - 2021-08-03
+
+### Changed
+
+- Upgrade to @hifi/amm@1.2.1.
+
 ## [1.1.0] - 2021-08-03
 
 ### Changed
@@ -22,5 +28,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 - First release of the package.
 
+[1.1.1]: https://github.com/hifi-finance/hifi-proxy-target/releases/tag/v1.1.1
 [1.1.0]: https://github.com/hifi-finance/hifi-proxy-target/releases/tag/v1.1.0
 [1.0.0]: https://github.com/hifi-finance/hifi-proxy-target/releases/tag/v1.0.0
diff --git a/package.json b/package.json
index bfb8c99..ce2f07e 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@hifi/proxy-target",
   "description": "DSProxy target contract with scripts for the Hifi protocol",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "author": {
     "name": "Hifi",
     "email": "contact@hifi.finance",