diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4044c15..dfb859a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [UNRELEASED]
+## [1.3.1] - 2025-12-22
 
 ### Fixed
 
diff --git a/gantt.xml b/gantt.xml
index ee9061a..50c53f6 100644
--- a/gantt.xml
+++ b/gantt.xml
@@ -21,6 +21,11 @@
       <author>Teclib'</author>
    </authors>
    <versions>
+      <version>
+         <num>1.3.1</num>
+         <compatibility>~11.0.0</compatibility>
+         <download_url>https://github.com/pluginsGLPI/gantt/releases/download/1.3.1/glpi-gantt-1.3.1.tar.bz2</download_url>
+      </version>
       <version>
          <num>1.3.0</num>
          <compatibility>~11.0.0</compatibility>
diff --git a/setup.php b/setup.php
index 2cf5651..cf8abb1 100644
--- a/setup.php
+++ b/setup.php
@@ -32,7 +32,7 @@
 
 use function Safe\define;
 
-define('PLUGIN_GANTT_VERSION', '1.3.0');
+define('PLUGIN_GANTT_VERSION', '1.3.1');
 
 // Minimal GLPI version, inclusive
 define('PLUGIN_GANTT_MIN_GLPI_VERSION', '11.0.0');