diff --git a/lib/use_case/answer/pin.rb b/lib/use_case/answer/pin.rb
index dd574e71..a14e8674 100644
--- a/lib/use_case/answer/pin.rb
+++ b/lib/use_case/answer/pin.rb
@@ -14,7 +14,7 @@ module UseCase
 
         {
           status:   200,
-          resource: answer
+          resource: answer,
         }
       end
 
diff --git a/lib/use_case/answer/unpin.rb b/lib/use_case/answer/unpin.rb
index ac945e63..f9553b8d 100644
--- a/lib/use_case/answer/unpin.rb
+++ b/lib/use_case/answer/unpin.rb
@@ -15,7 +15,7 @@ module UseCase
 
         {
           status:   200,
-          resource: nil
+          resource: nil,
         }
       end
 
diff --git a/spec/lib/use_case/data_export/answers_spec.rb b/spec/lib/use_case/data_export/answers_spec.rb
index 8298fbf1..99335a91 100644
--- a/spec/lib/use_case/data_export/answers_spec.rb
+++ b/spec/lib/use_case/data_export/answers_spec.rb
@@ -33,7 +33,7 @@ describe UseCase::DataExport::Answers, :data_export do
               created_at:    "2022-12-10T13:37:42.000Z",
               updated_at:    "2022-12-10T13:37:42.000Z",
               smile_count:   0,
-              pinned_at:     nil
+              pinned_at:     nil,
             }
           ]
         }