diff --git a/CHANGELOG.md b/CHANGELOG.md
index 59c20c21747..a24786a6ce9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,18 @@ This project follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) fo
 
 ## [Unreleased]
 
+## 1.20.1 - 2021-08-22
+
+### Bug Fixes
+
+* **idempotency:** sorting keys before hashing ([#639](https://github.com/awslabs/aws-lambda-powertools-python/issues/639))
+
+### Maintenance
+
+* markdown linter fixes ([#636](https://github.com/awslabs/aws-lambda-powertools-python/issues/636))
+* setup codespaces ([#637](https://github.com/awslabs/aws-lambda-powertools-python/issues/637))
+* **license:** add third party license ([#635](https://github.com/awslabs/aws-lambda-powertools-python/issues/635))
+
 ## 1.20.0 - 2021-08-21
 
 ## Bug Fixes
diff --git a/pyproject.toml b/pyproject.toml
index 7b7b5a9c4ec..f8f34c7c33d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aws_lambda_powertools"
-version = "1.20.0"
+version = "1.20.1"
 description = "A suite of utilities for AWS Lambda functions to ease adopting best practices such as tracing, structured logging, custom metrics, batching, idempotency, feature flags, and more."
 authors = ["Amazon Web Services"]
 include = ["aws_lambda_powertools/py.typed"]