diff --git a/CHANGELOG.md b/CHANGELOG.md
index e39dc16..a24fd9e 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]
 
+## [0.3.1] - 2022-01-05
+### Added
+- Added deprecation notice
+
 ## [0.3.0] - 2021-06-30
 ### Added
 - Support to update the Fallback Intent
@@ -35,7 +39,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Initial release
 
-[Unreleased]: https://github.com/aws-samples/aws-lex-v2-cfn-cr/compare/v0.3.0...develop
+[Unreleased]: https://github.com/aws-samples/aws-lex-v2-cfn-cr/compare/v0.3.1...develop
+[0.3.1]: https://github.com/aws-samples/aws-lex-v2-cfn-cr/compare/v0.3.0...v0.3.1
 [0.3.0]: https://github.com/aws-samples/aws-lex-v2-cfn-cr/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/aws-samples/aws-lex-v2-cfn-cr/compare/v0.1.0...v0.2.0
 [0.1.0]: https://github.com/aws-samples/aws-lex-v2-cfn-cr/releases/tag/v0.1.0
\ No newline at end of file
diff --git a/README.md b/README.md
index e0ea6f6..cefdea5 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 > An Amazon Lex V2 CloudFormation [Custom Resource](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/template-custom-resources.html)
 
+**NOTE:** this project has been deprecated. [Amazon Lex now supports AWS CloudFormation](https://aws.amazon.com/about-aws/whats-new/2021/12/amazon-lex-aws-cloudformation/).
+
 ## Quick Start
 
 ### Deploy Your Own Stack