diff --git a/environments/demo/credentials.yml b/environments/demo/credentials.yml
index e558e3c..5fc0d5c 100644
--- a/environments/demo/credentials.yml
+++ b/environments/demo/credentials.yml
@@ -5,10 +5,9 @@ credentials:
   mysql_root:
     username: root
     password: !vault |
-      $ANSIBLE_VAULT;1.1;AES256
-      66333336646631366230336266633330393236643537366239393638383935316662353039366434
-      3764373836323436353465323634656138323331646139310a353433333432316437323635316438
-      36303738656663313361646362663663376638613962313933626162383233333364646332623235
-      6461613935666665340a383864313836353963336461343437356537313934646235663863393161
-      3962
-
+        $ANSIBLE_VAULT;1.1;AES256
+        66333336646631366230336266633330393236643537366239393638383935316662353039366434
+        3764373836323436353465323634656138323331646139310a353433333432316437323635316438
+        36303738656663313361646362663663376638613962313933626162383233333364646332623235
+        6461613935666665340a383864313836353963336461343437356537313934646235663863393161
+        3962
diff --git a/environments/demo/nodes.yml b/environments/demo/nodes.yml
index fe5c94a..2fa3762 100644
--- a/environments/demo/nodes.yml
+++ b/environments/demo/nodes.yml
@@ -47,3 +47,8 @@ nodes:
       network:
         public: {address: 192.168.56.163, mac_address: "00:16:e3:00:00:a3"}
         demo: {address: 10.0.0.163, mac_address: "00:16:e3:00:01:a3"}
+    - name: galera-04
+      lxd_host: sidn-demo-01
+      network:
+        public: {address: 192.168.56.164, mac_address: "00:16:e3:00:00:a4"}
+        demo: {address: 10.0.0.164, mac_address: "00:16:e3:00:01:a4"}
diff --git a/roles/app.mariadb/defaults/main.yml b/roles/app.mariadb/defaults/main.yml
index 3c0650f..60f23c9 100644
--- a/roles/app.mariadb/defaults/main.yml
+++ b/roles/app.mariadb/defaults/main.yml
@@ -1,3 +1,3 @@
 ---
-mariadb_version: 10.3
+mariadb_version: 10.4
 mariadb_origin: ams2.mirrors.digitalocean.com