diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3a99fc..6989512 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]
 
+## [6.5.1] - 2026-05-11
+
 ### Changed
 
 - The Python 3.14 version alias now resolves to Python 3.14.5. ([#569](https://github.com/heroku/buildpacks-python/pull/569))
@@ -650,7 +652,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Initial implementation. ([#3](https://github.com/heroku/buildpacks-python/pull/3))
 
-[unreleased]: https://github.com/heroku/buildpacks-python/compare/v6.5.0...HEAD
+[unreleased]: https://github.com/heroku/buildpacks-python/compare/v6.5.1...HEAD
+[6.5.1]: https://github.com/heroku/buildpacks-python/compare/v6.5.0...v6.5.1
 [6.5.0]: https://github.com/heroku/buildpacks-python/compare/v6.4.1...v6.5.0
 [6.4.1]: https://github.com/heroku/buildpacks-python/compare/v6.4.0...v6.4.1
 [6.4.0]: https://github.com/heroku/buildpacks-python/compare/v6.3.0...v6.4.0
diff --git a/buildpack.toml b/buildpack.toml
index b699444..1e4ce95 100644
--- a/buildpack.toml
+++ b/buildpack.toml
@@ -2,7 +2,7 @@ api = "0.10"
 
 [buildpack]
 id = "heroku/python"
-version = "6.5.0"
+version = "6.5.1"
 name = "Heroku Python"
 homepage = "https://github.com/heroku/buildpacks-python"
 description = "Heroku's buildpack for Python applications."