diff --git a/CHANGELOG.md b/CHANGELOG.md
index 875713f..7825364 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- Updated uv from 0.11.19 to 0.11.28. ([#589](https://github.com/heroku/buildpacks-python/pull/589))
+
 ## [6.5.3] - 2026-06-10
 
 ### Changed
diff --git a/requirements/uv.txt b/requirements/uv.txt
index c5db7b4..f329fec 100644
--- a/requirements/uv.txt
+++ b/requirements/uv.txt
@@ -1 +1 @@
-uv==0.11.19
+uv==0.11.28
diff --git a/tests/uv_test.rs b/tests/uv_test.rs
index 3a89b6e..7fe8089 100644
--- a/tests/uv_test.rs
+++ b/tests/uv_test.rs
@@ -410,7 +410,9 @@ fn uv_lockfile_out_of_sync() {
                 Creating virtual environment
                 Running 'uv sync --locked --no-default-groups'
                 Resolved 2 packages in .+s
-                The lockfile at `uv.lock` needs to be updated, but `--locked` was provided. To update the lockfile, run `uv lock`.
+                error: The lockfile at `uv.lock` needs to be updated, but `--locked` was provided.
+
+                hint: To update the lockfile, run `uv lock`.
 
                 \\[Error: Unable to install dependencies using uv\\]
                 The 'uv sync' command to install the app's