diff --git a/CHANGELOG.md b/CHANGELOG.md
index b7d6ec6..ca21837 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased
+## 0.4.0
 ### Added
 - `spmc` version
 ### Changed