diff --git a/.changes/unreleased/Added-20230915-145854.yaml b/.changes/unreleased/Added-20230915-145854.yaml
deleted file mode 100644
index 8b52a99..0000000
--- a/.changes/unreleased/Added-20230915-145854.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-kind: Added
-body: Updated to go 1.21, updated documentation and metadata files
-time: 2023-09-15T14:58:54.291631882+02:00
diff --git a/.changes/v0.4.0.md b/.changes/v0.4.0.md
new file mode 100644
index 0000000..51f75be
--- /dev/null
+++ b/.changes/v0.4.0.md
@@ -0,0 +1,3 @@
+## v0.4.0 - 2023-09-15
+### Added
+* Updated to go 1.21, updated documentation and metadata files
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7eb6901..4a76c2a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html),
 and is generated by [Changie](https://github.com/miniscruff/changie).
 
 
+## v0.4.0 - 2023-09-15
+### Added
+* Updated to go 1.21, updated documentation and metadata files
+
 0.3.1 (2021-04-30)
 ==================
 # Fixes