diff --git a/CHANGELOG.md b/CHANGELOG.md
index e13a079..84a36ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # saltstack-age change log
 
-## Unreleased
+## 0.4.0
 
 * feat: allow configuration of an identity string using the `AGE_IDENTITY`
   environment variable and the `age_identity` configuration directive
diff --git a/pyproject.toml b/pyproject.toml
index 0e38668..1c655d4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "saltstack-age"
-version = "0.3.0"
+version = "0.4.0"
 description = "age renderer for Saltstack"
 authors = [{ name = "Philippe Muller" }]
 dependencies = [