lib/travis/api/v3/models/settings.rb

@@ -11,8 +11,7 @@ module Travis::API::V3
     end
 
     def update(settings = {})
-      repository.settings = repository.user_settings.update(settings).to_json
-      repository.settings_will_change!
+      repository.user_settings.update(settings)
       repository.save!
     end
   end

lib/travis/api/v3/query.rb

@@ -35,7 +35,7 @@ module Travis::API::V3
     @@prefixed_params_accessor = <<-RUBY
       def %<prefix>s_params
         @%<prefix>s ||= begin
-          params.select { |key, _| key.start_with?('%<prefix>s.'.freeze) }
+          params = @params.select { |key, _| key.start_with?('%<prefix>s.'.freeze) }
           Hash[params.map { |key, value| [key.split('.'.freeze).last, value] }]
         end
       end

spec/v3/services/settings_spec.rb

@@ -91,7 +91,7 @@ describe Travis::API::V3::Services::Settings, set_app: true do
     end
 
     describe 'authenticated, existing repo' do
-      let(:params) { JSON.dump('settings.build_pushes' => false, 'maximum_number_of_builds' => 4) }
+      let(:params) { JSON.dump('settings.build_pushes' => false) }
 
       before do
         repo.update_attributes(settings: JSON.dump('maximum_number_of_builds' => 20))
@@ -105,9 +105,8 @@ describe Travis::API::V3::Services::Settings, set_app: true do
           'builds_only_with_travis_yml' => false,
           'build_pushes' => false,
           'build_pull_requests' => true,
-          'maximum_number_of_builds' => 4
+          'maximum_number_of_builds' => 20
         )
-        expect(repo.reload.user_settings.maximum_number_of_builds).to eq(4)
       end
     end
   end