diff --git a/manifests/config.pp b/manifests/config.pp
index 4769fba..bef4c28 100644
--- a/manifests/config.pp
+++ b/manifests/config.pp
@@ -21,12 +21,10 @@
 #   or Puppet catalog compilation will fail with duplicate resources.
 #
 class zaqar::config (
-  $zaqar_config = {},
+  Hash $zaqar_config = {},
 ) {
 
   include zaqar::deps
 
-  validate_legacy(Hash, 'validate_hash', $zaqar_config)
-
   create_resources('zaqar_config', $zaqar_config)
 }
diff --git a/manifests/db/mysql.pp b/manifests/db/mysql.pp
index 51acf46..368b988 100644
--- a/manifests/db/mysql.pp
+++ b/manifests/db/mysql.pp
@@ -34,7 +34,7 @@
 #   Defaults to 'utf8_general_ci'
 #
 class zaqar::db::mysql(
-  $password,
+  String[1] $password,
   $dbname        = 'zaqar',
   $user          = 'zaqar',
   $host          = '127.0.0.1',
@@ -45,8 +45,6 @@ class zaqar::db::mysql(
 
   include zaqar::deps
 
-  validate_legacy(String, 'validate_string', $password)
-
   ::openstacklib::db::mysql { 'zaqar':
     user          => $user,
     password      => $password,
diff --git a/manifests/keystone/auth.pp b/manifests/keystone/auth.pp
index b61ac17..fe58a81 100644
--- a/manifests/keystone/auth.pp
+++ b/manifests/keystone/auth.pp
@@ -76,7 +76,7 @@
 #   Defaults to true
 #
 class zaqar::keystone::auth(
-  $password,
+  String[1] $password,
   $email                  = 'zaqar@localhost',
   $auth_name              = 'zaqar',
   $service_name           = 'zaqar',
@@ -98,8 +98,6 @@ class zaqar::keystone::auth(
 
   include zaqar::deps
 
-  validate_legacy(String, 'validate_string', $password)
-
   Keystone::Resource::Service_identity['zaqar'] -> Anchor['zaqar::service::end']
 
   keystone::resource::service_identity { 'zaqar':
diff --git a/manifests/policy.pp b/manifests/policy.pp
index 9c8b035..692aead 100644
--- a/manifests/policy.pp
+++ b/manifests/policy.pp
@@ -48,7 +48,7 @@
 class zaqar::policy (
   $enforce_scope        = $facts['os_service_default'],
   $enforce_new_defaults = $facts['os_service_default'],
-  $policies             = {},
+  Hash $policies        = {},
   $policy_path          = '/etc/zaqar/policy.yaml',
   $policy_default_rule  = $facts['os_service_default'],
   $policy_dirs          = $facts['os_service_default'],
@@ -58,8 +58,6 @@ class zaqar::policy (
   include zaqar::deps
   include zaqar::params
 
-  validate_legacy(Hash, 'validate_hash', $policies)
-
   $policy_parameters = {
     policies     => $policies,
     policy_path  => $policy_path,
diff --git a/manifests/server.pp b/manifests/server.pp
index b1df91b..78d215b 100644
--- a/manifests/server.pp
+++ b/manifests/server.pp
@@ -21,9 +21,9 @@
 
 #
 class zaqar::server(
-  $manage_service = true,
-  $enabled        = true,
-  $service_name   = $::zaqar::params::service_name,
+  Boolean $manage_service = true,
+  Boolean $enabled        = true,
+  $service_name           = $::zaqar::params::service_name,
 ) inherits zaqar::params {
 
   include zaqar
@@ -31,9 +31,6 @@ class zaqar::server(
   include zaqar::params
   include zaqar::policy
 
-  validate_legacy(Boolean, 'validate_bool', $manage_service)
-  validate_legacy(Boolean, 'validate_bool', $enabled)
-
   if $manage_service {
     if $enabled {
       $ensure = 'running'
diff --git a/manifests/server_instance.pp b/manifests/server_instance.pp
index 8f31cd7..ac62c0f 100644
--- a/manifests/server_instance.pp
+++ b/manifests/server_instance.pp
@@ -13,7 +13,7 @@
 #
 define zaqar::server_instance(
   $transport,
-  $enabled = true,
+  Boolean $enabled = true,
 ) {
 
   if $name == 'zaqar' {
@@ -24,8 +24,6 @@ define zaqar::server_instance(
   include zaqar::deps
   include zaqar::params
 
-  validate_legacy(Boolean, 'validate_bool', $enabled)
-
   if $enabled {
     $service_ensure = 'running'
   } else {