diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18ff857a..ac306dce 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]
 
+## [3.1.42] - 2022-01-10
+
 ### Security
 - Prevent arbitrary PHP code execution through maliciously crafted expression for the math function. This addresses CVE-2021-29454
 
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index 15224f55..e3b7ad23 100644
--- a/libs/Smarty.class.php
+++ b/libs/Smarty.class.php
@@ -111,7 +111,7 @@ class Smarty extends Smarty_Internal_TemplateBase
     /**
      * smarty version
      */
-    const SMARTY_VERSION = '3.1.41';
+    const SMARTY_VERSION = '3.1.42';
     /**
      * define variable scopes
      */