diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 00ceee641..5e0137012 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
           - 5432
 
       mariadb:
-        image: mariadb:11
+        image: mariadb:12
         ports:
           - 3306
         env:
diff --git a/.github/workflows/pull-locales.yml b/.github/workflows/pull-locales.yml
index 4077a47ce..12de83f68 100644
--- a/.github/workflows/pull-locales.yml
+++ b/.github/workflows/pull-locales.yml
@@ -20,7 +20,7 @@ jobs:
 
     services:
       mariadb:
-        image: mariadb:11
+        image: mariadb:12
         ports:
           - 3306
         env:
diff --git a/.github/workflows/upload-locales.yml b/.github/workflows/upload-locales.yml
index f93d39b66..7bf73c841 100644
--- a/.github/workflows/upload-locales.yml
+++ b/.github/workflows/upload-locales.yml
@@ -21,7 +21,7 @@ jobs:
 
     services:
       mariadb:
-        image: mariadb:11
+        image: mariadb:12
         ports:
           - 3306
         env:
diff --git a/compose.test.yml b/compose.test.yml
index 34dfef951..f7451586a 100644
--- a/compose.test.yml
+++ b/compose.test.yml
@@ -21,7 +21,7 @@ services:
       redis:
         condition: service_healthy
   db:
-    image: "mariadb:11"
+    image: "mariadb:12"
     environment:
       MARIADB_DATABASE: "app"
       MARIADB_USER: "user"
diff --git a/docker-compose-dev.yml b/docker-compose-dev.yml
index 0b78d461d..6598311e6 100644
--- a/docker-compose-dev.yml
+++ b/docker-compose-dev.yml
@@ -67,7 +67,7 @@ services:
       app:
         condition: service_healthy
   db:
-    image: "mariadb:11"
+    image: "mariadb:12"
     environment:
       MARIADB_ROOT_PASSWORD: "${DB_PASSWORD}"
       MARIADB_ROOT_HOST: "%"
diff --git a/docker-compose.yml b/docker-compose.yml
index ee4bf2e57..fecc9fdd9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -42,7 +42,7 @@ services:
       app:
         condition: service_healthy
   db:
-    image: "mariadb:11"
+    image: "mariadb:12"
     restart: unless-stopped
     environment:
       MARIADB_DATABASE: "${DB_DATABASE}"
diff --git a/docs/docs/administration/05-upgrade.md b/docs/docs/administration/05-upgrade.md
index 2acb640db..59396ed4c 100644
--- a/docs/docs/administration/05-upgrade.md
+++ b/docs/docs/administration/05-upgrade.md
@@ -203,12 +203,12 @@ All new installations will use this version, existing installations will not be
 
 To upgrade your MariaDB container, you need to edit your `docker-compose.yml` file:
 
-- Change the MariaDB image tag to `11`.
+- Change the MariaDB image tag to `12`.
 - Add a new environment variable `MARIADB_AUTO_UPGRADE` to trigger the service to upgrade the database:
 
     ```yaml
     db:
-        image: "mariadb:11"
+        image: "mariadb:12"
         environment:
             MARIADB_AUTO_UPGRADE: 1
     ```