2 files changed, 4 insertions, 8 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/serialization.rb b/activerecord/lib/active_record/attribute_methods/serialization.rb
index 53a9c874bf..47c6f94ba7 100644
--- a/activerecord/lib/active_record/attribute_methods/serialization.rb
+++ b/activerecord/lib/active_record/attribute_methods/serialization.rb
@@ -65,6 +65,8 @@ module ActiveRecord
       end
 
       class Type # :nodoc:
+        delegate :type, :type_cast_for_database, to: :@column
+
         def initialize(column)
           @column = column
         end
@@ -77,10 +79,6 @@ module ActiveRecord
           end
         end
 
-        def type
-          @column.type
-        end
-
         def accessor
           ActiveRecord::Store::IndifferentHashAccessor
         end
diff --git a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb
index dfebb2cf56..6149ac4906 100644
--- a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb
+++ b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb
@@ -2,6 +2,8 @@ module ActiveRecord
   module AttributeMethods
     module TimeZoneConversion
       class Type # :nodoc:
+        delegate :type, :type_cast_for_database, to: :@column
+
         def initialize(column)
           @column = column
         end
@@ -10,10 +12,6 @@ module ActiveRecord
           value = @column.type_cast(value)
           value.acts_like?(:time) ? value.in_time_zone : value
         end
-
-        def type
-          @column.type
-        end
       end
 
       extend ActiveSupport::Concern