diff --git a/roles/matrix-synapse/templates/synapse/homeserver.yaml.j2 b/roles/matrix-synapse/templates/synapse/homeserver.yaml.j2
index d52ba1abb..647bbfce5 100644
--- a/roles/matrix-synapse/templates/synapse/homeserver.yaml.j2
+++ b/roles/matrix-synapse/templates/synapse/homeserver.yaml.j2
@@ -152,8 +152,7 @@ listeners:
 {% if matrix_synapse_metrics_enabled %}
   - type: metrics
     port: {{ matrix_synapse_metrics_port }}
-    bind_addresses:
-      - '0.0.0.0'
+    bind_addresses: ['::']
 {% endif %}
 
 {% if matrix_synapse_federation_enabled and matrix_synapse_tls_federation_listener_enabled %}