diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9d7a77f1..1c48af45 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [4.0.4] - 2022-01-18
+
 ### Fixed
 - Fixed illegal characters bug in math function security check [#702](https://github.com/smarty-php/smarty/issues/702)
 
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index dcc3c342..2058524e 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -98,7 +98,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '4.0.3';
+    const SMARTY_VERSION = '4.0.4';
     /**
      * define variable scopes
      */