diff --git a/spec/classes/zaqar_db_postgresql_spec.rb b/spec/classes/zaqar_db_postgresql_spec.rb
index 8bc5ec6..19b5c40 100644
--- a/spec/classes/zaqar_db_postgresql_spec.rb
+++ b/spec/classes/zaqar_db_postgresql_spec.rb
@@ -34,13 +34,14 @@ describe 'zaqar::db::postgresql' do
   }).each do |os,facts|
     context "on #{os}" do
       let (:facts) do
-        facts.merge!(OSDefaults.get_facts({ :concat_basedir => '/var/lib/puppet/concat' }))
+        facts.merge!(OSDefaults.get_facts({
+          # puppet-postgresql requires the service_provider fact provided by
+          # puppetlabs-postgresql.
+          :service_provider => 'systemd'
+        }))
       end
 
-      # TODO(tkajinam): Remove this once puppet-postgresql supports CentOS 9
-      unless facts[:osfamily] == 'RedHat' and facts[:operatingsystemmajrelease].to_i >= 9
-        it_configures 'zaqar::db::postgresql'
-      end
+      it_configures 'zaqar::db::postgresql'
     end
   end