diff --git a/test/fixtures/active_record.rb b/test/fixtures/active_record.rb
index 6ae75f43..9d020b60 100644
--- a/test/fixtures/active_record.rb
+++ b/test/fixtures/active_record.rb
@@ -71,7 +71,7 @@ class ARTagSerializer < ActiveModel::Serializer
 end
 
 class ARSectionSerializer < ActiveModel::Serializer
-  attributes :name
+  attributes 'name'
 end
 
 ARPost.create(title: 'New post',
diff --git a/test/integration/active_record/active_record_test.rb b/test/integration/active_record/active_record_test.rb
index cf914b90..702430d3 100644
--- a/test/integration/active_record/active_record_test.rb
+++ b/test/integration/active_record/active_record_test.rb
@@ -17,7 +17,7 @@ module ActiveModel
             ar_comments: [{ body: 'what a dumb post', ar_tags: [{ name: 'short' }, { name: 'whiny' }] },
                           { body: 'i liked it', ar_tags: [{:name=>"short"}, {:name=>"happy"}] }],
             ar_tags: [{ name: 'short' }, { name: 'whiny' }, { name: 'happy' }],
-            ar_section: { name: 'ruby' }
+            ar_section: { 'name' => 'ruby' }
           }
         }, post_serializer.as_json)
       end
@@ -51,7 +51,7 @@ module ActiveModel
             ar_comments: [{ body: 'what a dumb post', ar_tags: [{ name: 'short' }, { name: 'whiny' }] },
                           { body: 'i liked it', ar_tags: [{:name=>"short"}, {:name=>"happy"}] }],
             ar_tags: [{ name: 'short' }, { name: 'whiny' }, { name: 'happy' }],
-            ar_section: { name: 'ruby' }
+            ar_section: { 'name' => 'ruby' }
           }, post_serializer.as_json)
         end
       end