diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf8a724c..2c134c13 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [4.5.5] - 2024-11-21
+
+
 - Support the deprecations introduced in PHP 8.4 and added tests for PHP 8.4 [#1084](https://github.com/smarty-php/smarty/pull/1084)
 
 ## [4.5.4] - 2024-08-14
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index 8b4e31d8..071cc94f 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -107,7 +107,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '4.5.4';
+    const SMARTY_VERSION = '4.5.5';
     /**
      * define variable scopes
      */