diff --git a/CHANGELOG.md b/CHANGELOG.md
index c980a73e..dee459f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 The minor version will be incremented upon a breaking change and the patch version will be
 incremented for features.
 
+## [0.4.0] - 2024-02-28
+
+### Breaking
+- Renamed two `PlanningDesignation` values that were previously incorrectly categorised as "designated land" ([#125](https://github.com/theopensystemslab/digital-planning-data-schemas/pull/122))
+- Removed duplicated "outbuildings" entries, now using singular "outbuilding" only, from `ProjectTypes` ([#123](https://github.com/theopensystemslab/digital-planning-data-schemas/pull/123))
+- Updated type `data.property.planning.designations.source` to include `text` & `url` ([#122](https://github.com/theopensystemslab/digital-planning-data-schemas/pull/122))
+- Updated `metadata.source` as requirement for any provider, not only PlanX ([#119](https://github.com/theopensystemslab/digital-planning-data-schemas/pull/119))
+
+### Fixed
+- Adjusted build scripts so that generated examples in `/dist` have correct version numbers ([#114](https://github.com/theopensystemslab/digital-planning-data-schemas/pull/114), [#115](https://github.com/theopensystemslab/digital-planning-data-schemas/pull/115))
+
 ## [0.3.0] - 2024-02-08
 
 ### Breaking
diff --git a/package.json b/package.json
index 90bc82f3..41f668be 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "digital-planning-data-schemas",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "Digital Planning Data schemas",
   "main": "schema/schema.json",
   "scripts": {