diff --git a/.github/workflows/moodle-ci.yml b/.github/workflows/moodle-ci.yml
index fea30b0..43b1ecc 100644
--- a/.github/workflows/moodle-ci.yml
+++ b/.github/workflows/moodle-ci.yml
@@ -8,7 +8,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:13
+        image: postgres:14
         env:
           POSTGRES_USER: 'postgres'
           POSTGRES_HOST_AUTH_METHOD: 'trust'
@@ -37,6 +37,9 @@ jobs:
           - php: '8.2'
             moodle-branch: 'main'
             database: 'pgsql'
+          - php: '8.1'
+            moodle-branch: 'MOODLE_405_STABLE'
+            database: 'mariadb'
           - php: '8.1'
             moodle-branch: 'MOODLE_404_STABLE'
             database: 'mariadb'