diff --git a/CHANGELOG.md b/CHANGELOG.md
index 185553f9de9..d18ef83934f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,11 +5,17 @@ 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).
 
 ## [Unreleased]
-- **Docs**: Add clarification to Tracer docs for how `capture_method` decorator can cause function responses to be read and serialized.
+
+## [1.9.1] - 2020-12-21
 
 ### Fixed
 - **Logger**: Bugfix to prevent parent loggers with the same name being configured more than once
 
+### Added
+- **Docs**: Add clarification to Tracer docs for how `capture_method` decorator can cause function responses to be read and serialized.
+- **Utilities**: Added equality to ease testing Event source data classes
+- **Package**: Added `py.typed` for initial work needed for PEP 561 compliance
+
 ## [1.9.0] - 2020-12-04
 
 ### Added
diff --git a/pyproject.toml b/pyproject.toml
index be0191db56b..78b5d712406 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aws_lambda_powertools"
-version = "1.9.0"
+version = "1.9.1"
 description = "Python utilities for AWS Lambda functions including but not limited to tracing, logging and custom metric"
 authors = ["Amazon Web Services"]
 include = ["aws_lambda_powertools/py.typed"]