diff --git a/ansible/vars/metacluster.yml b/ansible/vars/metacluster.yml
index 3b2a34b..2ac25fd 100644
--- a/ansible/vars/metacluster.yml
+++ b/ansible/vars/metacluster.yml
@@ -18,6 +18,7 @@ platform:
               - "--certificatesResolvers.stepca.acme.email=admin"
               - "--certificatesResolvers.stepca.acme.storage=/data/acme.json"
               - "--certificatesResolvers.stepca.acme.tlsChallenge=true"
+              - "--certificatesresolvers.stepca.acme.certificatesduration=24"
             globalArguments: []
             ingressRoute:
               dashboard: