lib/cocina/models/descriptive_admin_metadata.rb in cocina-models-0.63.0 vs lib/cocina/models/descriptive_admin_metadata.rb in cocina-models-0.63.1

@@ -1,14 +1,14 @@
 # frozen_string_literal: true
 
 module Cocina
   module Models
     class DescriptiveAdminMetadata < Struct
-      attribute :contributor, Types::Strict::Array.of(Contributor).default([])
-      attribute :event, Types::Strict::Array.of(Event).default([])
-      attribute :language, Types::Strict::Array.of(Language).default([])
-      attribute :note, Types::Strict::Array.of(DescriptiveValue).default([])
-      attribute :metadataStandard, Types::Strict::Array.of(Standard).default([])
-      attribute :identifier, Types::Strict::Array.of(DescriptiveValue).default([])
+      attribute :contributor, Types::Strict::Array.of(Contributor).default([].freeze)
+      attribute :event, Types::Strict::Array.of(Event).default([].freeze)
+      attribute :language, Types::Strict::Array.of(Language).default([].freeze)
+      attribute :note, Types::Strict::Array.of(DescriptiveValue).default([].freeze)
+      attribute :metadataStandard, Types::Strict::Array.of(Standard).default([].freeze)
+      attribute :identifier, Types::Strict::Array.of(DescriptiveValue).default([].freeze)
     end
   end
 end