diff --git a/manifests/config.pp b/manifests/config.pp
index d6c3b456..51465d3a 100644
--- a/manifests/config.pp
+++ b/manifests/config.pp
@@ -30,8 +30,8 @@ class aodh::config (
 
   include ::aodh::deps
 
-  validate_hash($aodh_config)
-  validate_hash($aodh_api_paste_ini)
+  validate_legacy(Hash, 'validate_hash', $aodh_config)
+  validate_legacy(Hash, 'validate_hash', $aodh_api_paste_ini)
 
   create_resources('aodh_config', $aodh_config)
   create_resources('aodh_api_paste_ini', $aodh_api_paste_ini)
diff --git a/manifests/db/mysql.pp b/manifests/db/mysql.pp
index 0b908c94..c1918796 100644
--- a/manifests/db/mysql.pp
+++ b/manifests/db/mysql.pp
@@ -45,7 +45,7 @@ class aodh::db::mysql(
 
   include ::aodh::deps
 
-  validate_string($password)
+  validate_legacy(String, 'validate_string', $password)
 
   ::openstacklib::db::mysql { 'aodh':
     user          => $user,
diff --git a/manifests/policy.pp b/manifests/policy.pp
index 1e2b7c3c..5537818f 100644
--- a/manifests/policy.pp
+++ b/manifests/policy.pp
@@ -31,7 +31,7 @@ class aodh::policy (
   include ::aodh::deps
   include ::aodh::params
 
-  validate_hash($policies)
+  validate_legacy(Hash, 'validate_hash', $policies)
 
   Openstacklib::Policy::Base {
     file_path  => $policy_path,