diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a1acb7d..624a5946 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-Unreleased Changes
+4.0.3 (2024-07-31)
 ------------------
 
 * Issue - Revert validating `:ses` or `:sesv2` as ActionMailer configuration. (#136)
diff --git a/VERSION b/VERSION
index 4d54dadd..c4e41f94 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.0.2
+4.0.3