diff --git a/.github/workflows/moodle-plugin-ci.yml b/.github/workflows/moodle-plugin-ci.yml
index d6fc2b2..04262c0 100644
--- a/.github/workflows/moodle-plugin-ci.yml
+++ b/.github/workflows/moodle-plugin-ci.yml
@@ -31,27 +31,27 @@ jobs:
       matrix:
         include:
           - php: 8.3
-            moodle-branch: main
+            moodle-branch: MOODLE_405_STABLE
             database: pgsql
             plugin-ci: 4
           - php: 8.3
-            moodle-branch: main
+            moodle-branch: MOODLE_405_STABLE
             database: mariadb
             plugin-ci: 4
           - php: 8.2
-            moodle-branch: main
+            moodle-branch: MOODLE_405_STABLE
             database: pgsql
             plugin-ci: 4
           - php: 8.2
-            moodle-branch: main
+            moodle-branch: MOODLE_405_STABLE
             database: mariadb
             plugin-ci: 4
           - php: 8.1
-            moodle-branch: main
+            moodle-branch: MOODLE_405_STABLE
             database: pgsql
             plugin-ci: 4
           - php: 8.1
-            moodle-branch: main
+            moodle-branch: MOODLE_405_STABLE
             database: mariadb
             plugin-ci: 4
           - php: 8.3
diff --git a/CHANGES.md b/CHANGES.md
index 4334114..96b5f0b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,6 +4,10 @@ moodle-local_differentiator
 Changes
 -------
 
+### v4.5-r1
+
+* 2024-10-12 - Adopt to Moodle 4.5.
+
 ### v4.4-r1
 
 * 2024-04-22 - Adopt to Moodle 4.4.
diff --git a/README.md b/README.md
index 12813ae..58c96c3 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Moodle Differentiator
 [![GitHub
 Release](https://img.shields.io/github/release/lucaboesch/moodle-local_differentiator.svg)](https://github.com/lucaboesch/moodle-local_differentiator/releases)
 [![PHP Support](https://img.shields.io/badge/php-7.4--8.3-blue)](https://github.com/lucaboesch/moodle-local_differentiator/actions)
-[![Moodle Support](https://img.shields.io/badge/Moodle-4.1--4.4-orange)](https://github.com/lucaboesch/moodle-local_differentiator/actions)
+[![Moodle Support](https://img.shields.io/badge/Moodle-4.1--4.5-orange)](https://github.com/lucaboesch/moodle-local_differentiator/actions)
 [![License GPL-3.0](https://img.shields.io/github/license/lucaboesch/moodle-local_differentiator?color=lightgrey)](https://github.com/lucaboesch/moodle-local_differentiator/blob/main/LICENSE)
 [![GitHub contributors](https://img.shields.io/github/contributors/lucaboesch/moodle-local_differentiator)](https://github.com/lucaboesch/moodle-local_differentiator/graphs/contributors)
 
diff --git a/version.php b/version.php
index 6d0f47e..13040c9 100644
--- a/version.php
+++ b/version.php
@@ -26,7 +26,7 @@
 
 $plugin->component = 'local_differentiator';
 $plugin->release = 'v4.4-r1';
-$plugin->version = 2024042200;
+$plugin->version = 2024101200;
 $plugin->requires = 2020061500;
 $plugin->maturity = MATURITY_STABLE;
-$plugin->supported = [39, 404];
+$plugin->supported = [39, 405];