diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9304f07..1d09f3f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); version
 
 ## [Unreleased]
 
+## [0.5.1] - 2026-08-28
+
 ### Fixed
 
 - **First-run honesty for people, not agents.** Bare `plate` outside a terminal
@@ -871,7 +873,8 @@ Initial development version: LAN-mode printer control (MQTT/FTPS), one-shot `job
 ### Removed
 - `requirements.txt`, which duplicated the `dependencies` already declared in `pyproject.toml`. Install with `uv pip install -e .` (or `pip install platecli`) instead.
 
-[Unreleased]: https://github.com/DLANSAMA/platecli/compare/v0.5.0...HEAD
+[Unreleased]: https://github.com/DLANSAMA/platecli/compare/v0.5.1...HEAD
+[0.5.1]: https://github.com/DLANSAMA/platecli/compare/v0.5.0...v0.5.1
 [0.5.0]: https://github.com/DLANSAMA/platecli/compare/v0.4.0...v0.5.0
 [0.4.0]: https://github.com/DLANSAMA/platecli/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/DLANSAMA/platecli/compare/v0.2.2...v0.3.0
diff --git a/pyproject.toml b/pyproject.toml
index c4bf334..1955e1a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "platecli"
 # Unreleased work carries a .devN suffix so a source build is never mistaken
 # for the released wheel of the same number. Drop the suffix when tagging.
-version = "0.6.0.dev0"
+version = "0.5.1"
 description = "platecli — local CLI for Bambu Lab printers (not affiliated with Bambu Lab)"
 readme = "README.md"
 requires-python = ">=3.10"