diff --git a/manifests/config.pp b/manifests/config.pp
index e2ea758..4f8a07d 100644
--- a/manifests/config.pp
+++ b/manifests/config.pp
@@ -26,7 +26,7 @@ class zaqar::config (
 
   include ::zaqar::deps
 
-  validate_hash($zaqar_config)
+  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 84245c2..222e22f 100644
--- a/manifests/db/mysql.pp
+++ b/manifests/db/mysql.pp
@@ -45,7 +45,7 @@ class zaqar::db::mysql(
 
   include ::zaqar::deps
 
-  validate_string($password)
+  validate_legacy(String, 'validate_string', $password)
 
   ::openstacklib::db::mysql { 'zaqar':
     user          => $user,
diff --git a/manifests/keystone/auth.pp b/manifests/keystone/auth.pp
index e2946d8..d6a553f 100644
--- a/manifests/keystone/auth.pp
+++ b/manifests/keystone/auth.pp
@@ -88,7 +88,7 @@ class zaqar::keystone::auth(
 
   include ::zaqar::deps
 
-  validate_string($password)
+  validate_legacy(String, 'validate_string', $password)
 
   keystone::resource::service_identity { 'zaqar':
     configure_user      => $configure_user,
diff --git a/manifests/keystone/auth_websocket.pp b/manifests/keystone/auth_websocket.pp
index d7cf55f..de2ab77 100644
--- a/manifests/keystone/auth_websocket.pp
+++ b/manifests/keystone/auth_websocket.pp
@@ -76,7 +76,7 @@ class zaqar::keystone::auth_websocket(
 
   include ::zaqar::deps
 
-  validate_string($password)
+  validate_legacy(String, 'validate_string', $password)
 
   keystone::resource::service_identity { 'zaqar-websocket':
     configure_user      => $configure_user,
diff --git a/manifests/policy.pp b/manifests/policy.pp
index 7536d60..6163526 100644
--- a/manifests/policy.pp
+++ b/manifests/policy.pp
@@ -31,7 +31,7 @@ class zaqar::policy (
   include ::zaqar::deps
   include ::zaqar::params
 
-  validate_hash($policies)
+  validate_legacy(Hash, 'validate_hash', $policies)
 
   Openstacklib::Policy::Base {
     file_path  => $policy_path,
@@ -42,5 +42,4 @@ class zaqar::policy (
   create_resources('openstacklib::policy::base', $policies)
 
   oslo::policy { 'zaqar_config': policy_file => $policy_path }
-
 }