diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76fd06e..847cae6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## UNRELEASED (0.4.0)
+## [0.4.0](https://github.com/brick/varexporter/releases/tag/0.4.0) - 2023-09-01
 
 Minimum PHP version is now `7.4`. No breaking changes.
 
diff --git a/README.md b/README.md
index 523d2cf..69daeb9 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,7 @@ The current releases are numbered `0.x.y`. When a non-breaking change is introdu
 
 **When a breaking change is introduced, a new `0.x` version cycle is always started.**
 
-It is therefore safe to lock your project to a given release cycle, such as `0.3.*`.
+It is therefore safe to lock your project to a given release cycle, such as `0.4.*`.
 
 If you need to upgrade to a newer release cycle, check the [release history](https://github.com/brick/varexporter/releases) for a list of changes introduced by each further `0.x.0` version.