diff --git a/Changes.md b/Changes.md
index 931481e7..c8a710d5 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,6 +1,9 @@
 History
 =============
 
+Version 403.1.5 - In development
+--------------------------------
+
 Version 403.1.4.5 - 28/09/2024
 ------------------------------
 1. Fix 'Version 404.1.2 adhoc task fails' - #222.
diff --git a/version.php b/version.php
index e5fd06c4..6aa50679 100644
--- a/version.php
+++ b/version.php
@@ -29,7 +29,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 // Plugin version.
-$plugin->version = 2023101505;
+$plugin->version = 2023101506;
 
 // Required Moodle version.
 $plugin->requires = 2023100900.00; // 4.3 (Build: 20231009).
@@ -44,4 +44,4 @@
 $plugin->maturity = MATURITY_STABLE;
 
 // User-friendly version number.
-$plugin->release = '403.1.4.5';
+$plugin->release = '403.1.5';