diff --git a/rootfs/etc/confd/templates/dovecot.conf.tmpl b/rootfs/etc/confd/templates/dovecot.conf.tmpl
index f4ebb87..8313627 100644
--- a/rootfs/etc/confd/templates/dovecot.conf.tmpl
+++ b/rootfs/etc/confd/templates/dovecot.conf.tmpl
@@ -1,4 +1,4 @@
 protocols = imap lmtp sieve
-listen = *
+listen = [::]
 !include conf.d/*.conf
 !include_try local.conf