diff --git a/tasks/mariadb.yml b/tasks/mariadb.yml
index d5594f7..d7682bb 100644
--- a/tasks/mariadb.yml
+++ b/tasks/mariadb.yml
@@ -10,8 +10,8 @@
     image:
       name: mariadb
       tag: latest
-    published_ports:
-      - "3306:3306"
+    networks:
+      - name: "{{ docker_network_name }}"
     volumes:
       - "{{ data_dir }}/db:/var/lib/mysql"
       - "{{ data_dir }}/db/etc:/etc/mysql"
diff --git a/tasks/romm.yml b/tasks/romm.yml
index 33a70b3..3ed9cf6 100644
--- a/tasks/romm.yml
+++ b/tasks/romm.yml
@@ -21,7 +21,7 @@
       - "{{ data_dir }}/romm/config:/romm/config"
       - "{{ ROMM_LIBRARY_PATH }}:/romm/library"
     env:
-      DB_HOST: postgres
+      DB_HOST: mariadb
       DB_NAME: romm
       DB_USER: rommuser
       DB_PASSWD: romm