diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c574e7..c23dd9b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Updated pip from 26.0.1 to 26.1.1. ([#563](https://github.com/heroku/buildpacks-python/pull/563))
+- Updated Poetry from 2.3.4 to 2.4.0. ([#564](https://github.com/heroku/buildpacks-python/pull/564))
 - Updated uv from 0.11.6 to 0.11.11. ([#562](https://github.com/heroku/buildpacks-python/pull/562))
 
 ## [6.4.1] - 2026-04-13
diff --git a/requirements/poetry.txt b/requirements/poetry.txt
index eb883fe..1d32766 100644
--- a/requirements/poetry.txt
+++ b/requirements/poetry.txt
@@ -1 +1 @@
-poetry==2.3.4
+poetry==2.4.0