diff --git a/Changelog.md b/Changelog.md
index 2790f51b..ac767a6d 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -2,9 +2,11 @@
 
 ## [Unreleased]
 
+## [0.4.0a1] - 2022-04-18
+
 - Adding static result allocation by @idavis in https://github.com/qir-alliance/pyqir/pull/103
 - Bumping version to `0.4.0a1` by @idavis in https://github.com/qir-alliance/pyqir/pull/105
-- Changing default value of use_static_result_alloc to True by @idavis in https://github.com/qir-alliance/pyqir/pull/106
+- Changing default value of `use_static_result_alloc` to `True` by @idavis in https://github.com/qir-alliance/pyqir/pull/106
 
 PR [#106](https://github.com/qir-alliance/pyqir/pull/106) changes
 the default way `Result`s are emitted in emitted QIR.
@@ -93,7 +95,8 @@ class:
 
 - Initial Release
 
-[Unreleased]: https://github.com/qir-alliance/pyqir/compare/v0.3.2a1...HEAD
+[Unreleased]: https://github.com/qir-alliance/pyqir/compare/v0.4.0a1...HEAD
+[0.4.0a1]: https://github.com/qir-alliance/pyqir/compare/v0.3.2a1...v0.4.0a1
 [0.3.2a1]: https://github.com/qir-alliance/pyqir/compare/v0.3.1a1...v0.3.2a1
 [0.3.1a1]: https://github.com/qir-alliance/pyqir/compare/v0.3.0a1...v0.3.1a1
 [0.3.0a1]: https://github.com/qir-alliance/pyqir/compare/v0.2.0a1...v0.3.0a1