diff --git a/CHANGELOG.md b/CHANGELOG.md
index d6ff9829..6c6d1aa5 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]
 
+## [3.1.45] - 2022-05-17
+
 ### Security
 - Prevent PHP injection through malicious block name or include file name. This addresses CVE-2022-29221
 
diff --git a/libs/Smarty.class.php b/libs/Smarty.class.php
index d708ce3b..65949fd0 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 = '3.1.44';
+    const SMARTY_VERSION = '3.1.45';
     /**
      * define variable scopes
      */