diff --git a/CHANGELOG.md b/CHANGELOG.md
index 84ef781..0feed77 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [unreleased]
 
+## [0.9.0] - 2024-01-05
+
 ### Added
 
 - Tool and library built using .NET8 (#14)
@@ -143,7 +145,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Initial release
 
-[unreleased]: https://github.com/PerfectlyNormal/TypeContractor/compare/v0.8.1...HEAD
+[unreleased]: https://github.com/PerfectlyNormal/TypeContractor/compare/v0.9.0...HEAD
+[0.9.0]: https://github.com/PerfectlyNormal/TypeContractor/compare/v0.9.0...v0.8.1
 [0.8.1]: https://github.com/PerfectlyNormal/TypeContractor/compare/v0.8.0...v0.8.1
 [0.8.0]: https://github.com/PerfectlyNormal/TypeContractor/compare/v0.7.0...v0.8.0
 [0.7.0]: https://github.com/PerfectlyNormal/TypeContractor/compare/v0.6.0...v0.7.0