diff --git a/inventory/ghp/sample/group_vars/all/all.yaml b/inventory/ghp/sample/group_vars/all/all.yaml
index 698e1ef..cf7f5a0 100644
--- a/inventory/ghp/sample/group_vars/all/all.yaml
+++ b/inventory/ghp/sample/group_vars/all/all.yaml
@@ -10,6 +10,15 @@ mail_proxy_private_ip: "{{ dns_ip }}"
 web_proxy_internal_ip: INTERNAL_VPS_IP
 
 # Core infrastructure #
+## MetalLB ##
+metallb_advertisement_type: "BGP"
+metallb_address_pool:
+  - 192.168.250.0/24
+metallb_bgp_my_asn: 65500
+metallb_bgp_peer_asn: 64601
+metallb_bgp_peer_address: 192.168.5.1
+metallb_bgp_aggregation_length: 24
+
 ## Nginx Ingress ##
 ### Internal ###
 internal_ingress_class: "ghp-internal-nginx"
diff --git a/inventory/ghp/sample/group_vars/all/versions.yaml b/inventory/ghp/sample/group_vars/all/versions.yaml
index 9487961..16a8de6 100644
--- a/inventory/ghp/sample/group_vars/all/versions.yaml
+++ b/inventory/ghp/sample/group_vars/all/versions.yaml
@@ -1,5 +1,5 @@
 # MetalLB balancer
-metallb_version: 0.12.1
+metallb_version: 0.13.3
 
 # NFS provisioners
 nfs_client_provisioner_hdd_version: 4.0.14
diff --git a/inventory/ghp/sample/group_vars/k8s/metallb.yaml b/inventory/ghp/sample/group_vars/k8s/metallb.yaml
index da313d7..62af16b 100644
--- a/inventory/ghp/sample/group_vars/k8s/metallb.yaml
+++ b/inventory/ghp/sample/group_vars/k8s/metallb.yaml
@@ -1,13 +1 @@
-metallb_values:
-  configInline:
-    peers:
-    - peer-address: 192.168.5.1
-      peer-asn: 64601
-      my-asn: 65500
-    address-pools:
-    - name: default
-      protocol: bgp
-      bgp-advertisements:
-      - aggregation-length: 24
-      addresses:
-      - 192.168.250.0/24
+metallb_values: {}