diff --git a/manifests/init.pp b/manifests/init.pp
index 3d31dbf0..ad86ce3f 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -387,7 +387,7 @@
   Integer[0] $dns_ttl = 86400,
   String $dns_tsig_keytab = $foreman_proxy::params::dns_tsig_keytab,
   String $dns_tsig_principal = $foreman_proxy::params::dns_tsig_principal,
-  Array[String] $dns_forwarders = [],
+  Array[Dns::Forwarder] $dns_forwarders = [],
   String $libvirt_network = 'default',
   String $libvirt_connection = 'qemu:///system',
   Boolean $bmc = false,
diff --git a/manifests/proxydns.pp b/manifests/proxydns.pp
index db74cd82..7c657df6 100644
--- a/manifests/proxydns.pp
+++ b/manifests/proxydns.pp
@@ -19,7 +19,7 @@
 #   entry.
 #
 class foreman_proxy::proxydns (
-  Array[String] $forwarders = $foreman_proxy::dns_forwarders,
+  Array[Dns::Forwarder] $forwarders = $foreman_proxy::dns_forwarders,
   String $interface = $foreman_proxy::dns_interface,
   Stdlib::Fqdn $forward_zone = $foreman_proxy::dns_zone,
   Optional[Variant[Boolean, String, Array[String]]] $reverse_zone = $foreman_proxy::dns_reverse,
diff --git a/metadata.json b/metadata.json
index 91b484d0..6cf0a6a4 100644
--- a/metadata.json
+++ b/metadata.json
@@ -20,7 +20,7 @@
   "dependencies": [
     {
       "name": "theforeman/dns",
-      "version_requirement": ">= 8.1.0 < 11.0.0"
+      "version_requirement": ">= 11.0.0 < 12.0.0"
     },
     {
       "name": "theforeman/dhcp",