diff --git a/roles/traefik/defaults/main.yml b/roles/traefik/defaults/main.yml
index 76de9ae..08882a1 100644
--- a/roles/traefik/defaults/main.yml
+++ b/roles/traefik/defaults/main.yml
@@ -57,7 +57,7 @@ traefik_ipv6:
   # (see https://web.archive.org/web/20181113104036/https://docs.docker.com/v17.06/engine/userguide/networking/default_network/ipv6/#docker-ipv6-cluster)
   subnet: "{{ ansible_default_ipv6.address | ipsubnet(64) | ipsubnet(80, 51966) }}"
   # The traefik container will use this static address, unless you explicitly use `{{ omit }}`
-  ip_addr: "{{ ansible_default_ipv6.address | ipsubnet(64) | ipsubnet(80, 51966) | ipaddr('2') | ipaddr('address') }}"
+  ip_addr: "{{ ansible_default_ipv6.address | ipsubnet(64) | ipsubnet(80, 51966) | ansible.utils.ipaddr('2') | ansible.utils.ipaddr('address') }}"
   # The name of the special ipv6 network which will be created and added to the traefik container
   name: traefik_ipv6
 
diff --git a/roles/traefik/templates/docker-compose.yml b/roles/traefik/templates/docker-compose.yml
index 64a7ea0..c2dc74e 100644
--- a/roles/traefik/templates/docker-compose.yml
+++ b/roles/traefik/templates/docker-compose.yml
@@ -143,7 +143,7 @@ services:
 {% if traefik_ipv6.enabled %}
       {{ traefik_ipv6.name }}:
 {% if traefik_ipv6.ip_addr != omit %}
-        ipv6_address: {{ traefik_ipv6.ip_addr | ipaddr('address') }}
+        ipv6_address: {{ traefik_ipv6.ip_addr | ansible.utils.ipaddr('address') }}
 {% endif %}
 {% endif %}