diff --git a/lib/api/pipelines.rb b/lib/api/pipelines.rb
index fcec7e7d3bb..bcb4fdcfe47 100644
--- a/lib/api/pipelines.rb
+++ b/lib/api/pipelines.rb
@@ -14,16 +14,16 @@ module API
       end
       params do
         use :pagination
-        optional :scope,    type: String, values: %[running pending finished branches tags],
+        optional :scope,    type: String, values: %w[running pending finished branches tags],
                             desc: 'The scope of pipelines'
-        optional :status,   type: String, values: %[running pending success failed canceled skipped],
+        optional :status,   type: String, values: %w[running pending success failed canceled skipped],
                             desc: 'The status of pipelines'
         optional :ref,      type: String, desc: 'The ref of pipelines'
         optional :yaml_errors, type: Boolean, desc: 'If true, returns only yaml error pipelines'
         optional :username, type: String, desc: 'The name of user who triggered pipelines'
-        optional :order_by, type: String, values: %[id status ref username started_at finished_at created_at updated_at], default: 'id',
+        optional :order_by, type: String, values: %w[id status ref username started_at finished_at created_at updated_at], default: 'id',
                             desc: 'The order_by which is combined with a sort'
-        optional :sort,     type: String, values: %[asc desc], default: 'desc',
+        optional :sort,     type: String, values: %w[asc desc], default: 'desc',
                             desc: 'The sort method which is combined with an order_by'
       end
       get ':id/pipelines' do
diff --git a/spec/finders/pipelines_finder_spec.rb b/spec/finders/pipelines_finder_spec.rb
index 395eb2f9701..a16d3bb8d25 100644
--- a/spec/finders/pipelines_finder_spec.rb
+++ b/spec/finders/pipelines_finder_spec.rb
@@ -56,7 +56,7 @@ describe PipelinesFinder do
         let(:params) { { scope: 'finished' } }
 
         it 'has only finished status' do
-          expect(subject.map(&:status)).to match_array %[success canceled failed]
+          expect(subject.map(&:status)).to match_array %w[success canceled failed]
         end
       end