diff --git a/utils/font_helper/source/font_helper/font.rb b/utils/font_helper/source/font_helper/font.rb
index 4b789a9..f7ae037 100644
--- a/utils/font_helper/source/font_helper/font.rb
+++ b/utils/font_helper/source/font_helper/font.rb
@@ -6,7 +6,7 @@ class FontHelper
 
     delegate :<<, to: :characters
 
-    def initialize(width, height, characters = nil)
+    def initialize(width:, height:, characters: nil)
       @width = width
       @height = height
       @characters = characters.to_h do |character|
diff --git a/utils/font_helper/spec/app/font_helper/font_spec.rb b/utils/font_helper/spec/app/font_helper/font_spec.rb
index db4ce8f..b9b6f2e 100644
--- a/utils/font_helper/spec/app/font_helper/font_spec.rb
+++ b/utils/font_helper/spec/app/font_helper/font_spec.rb
@@ -3,7 +3,7 @@
 require 'spec_helper'
 
 describe FontHelper::Font do
-  subject(:font) { described_class.new(width, height, characters) }
+  subject(:font) { described_class.new(width:, height:, characters:) }
 
   let(:height) { Random.rand(10..30) }
   let(:width) { (height * 1.5).to_f }