diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8deae502..83df7143 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,10 @@ All notable changes to this project will be documented in this file.
 <!-- markdownlint-disable MD024 -->
 
 ## [Unreleased]
-<!-- None < 2024-05-14 19:52:57+00:00 -->
+<!-- None < 2024-05-15 09:01:39+00:00 -->
+
+## [31.1.0] - 2024-05-15
+<!-- 2024-05-15 09:01:39+00:00 < 2024-05-14 19:52:57+00:00 -->
 
 ### BLUEPRINTS
 
@@ -2151,7 +2154,8 @@ All notable changes to this project will be documented in this file.
 - merge development branch with suite of new modules and end-to-end examples
 
 <!-- markdown-link-check-disable -->
-[Unreleased]: https://github.com/GoogleCloudPlatform/cloud-foundation-fabric/compare/v31.0.0...HEAD
+[Unreleased]: https://github.com/GoogleCloudPlatform/cloud-foundation-fabric/compare/v31.1.0...HEAD
+[31.1.0]: https://github.com/GoogleCloudPlatform/cloud-foundation-fabric/compare/v31.0.0...v31.1.0
 [31.0.0]: https://github.com/GoogleCloudPlatform/cloud-foundation-fabric/compare/v30.0.0...v31.0.0
 [30.0.0]: https://github.com/GoogleCloudPlatform/cloud-foundation-fabric/compare/v29.0.0...v30.0.0
 [29.0.0]: https://github.com/GoogleCloudPlatform/cloud-foundation-fabric/compare/v28.0.0...v29.0.0