diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c5b374..a5ddba6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.0.0-alpha.20] - 2022-01-10
+
 ### Changed
 - Updated `bleak` dependency to v0.14.0.
 
@@ -13,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed Bluetooth Low Energy not working on macOS 12.
 
 
+- Updated `bleak` dependency to v0.12.1.
 ## [1.0.0-alpha.19] - 2021-12-24
 
 ### Fixed
@@ -178,7 +181,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 <!-- let's try to keep these sorted alphabetically -->
 [support#420]: https://github.com/pybricks/support/issues/420
 
-[Unreleased]: https://github.com/pybricks/pybricksdev/compare/v1.0.0-alpha.19..HEAD
+[Unreleased]: https://github.com/pybricks/pybricksdev/compare/v1.0.0-alpha.20..HEAD
+[1.0.0-alpha.20]: https://github.com/pybricks/pybricksdev/compare/v1.0.0-alpha.19...v1.0.0-alpha.20
 [1.0.0-alpha.19]: https://github.com/pybricks/pybricksdev/compare/v1.0.0-alpha.18...v1.0.0-alpha.19
 [1.0.0-alpha.18]: https://github.com/pybricks/pybricksdev/compare/v1.0.0-alpha.17...v1.0.0-alpha.18
 [1.0.0-alpha.17]: https://github.com/pybricks/pybricksdev/compare/v1.0.0-alpha.16...v1.0.0-alpha.17
diff --git a/pyproject.toml b/pyproject.toml
index bd8bdd5..a5eef3a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pybricksdev"
-version = "1.0.0-alpha.19"
+version = "1.0.0-alpha.20"
 description = "Pybricks developer tools"
 authors = ["The Pybricks Authors <dev@pybricks.com>"]
 maintainers = ["Laurens Valk <laurens@pybricks.com>", "David Lechner <david@pybricks.com>" ]