diff --git a/CHANGELOG.md b/CHANGELOG.md
index 996b3863..6c2ff4ed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ All notable changes to this project will be documented in this file.
 
 
 
+<a name="v3.1.0"></a>
+## [v3.1.0] - 2020-06-10
+
+- fix: Upgraded version of Lambda module (fix [#84](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/84))
+
+
 <a name="v3.0.0"></a>
 ## [v3.0.0] - 2020-06-07
 
@@ -241,7 +247,8 @@ All notable changes to this project will be documented in this file.
 - Initial commit
 
 
-[Unreleased]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v3.0.0...HEAD
+[Unreleased]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v3.1.0...HEAD
+[v3.1.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v3.0.0...v3.1.0
 [v3.0.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v2.15.0...v3.0.0
 [v2.15.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v2.14.0...v2.15.0
 [v2.14.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v2.13.0...v2.14.0