1 files changed, 3 insertions, 3 deletions
diff --git a/lib/axlsx/drawing/bubble_series.rb b/lib/axlsx/drawing/bubble_series.rb
index b5903259..a30612ec 100644
--- a/lib/axlsx/drawing/bubble_series.rb
+++ b/lib/axlsx/drawing/bubble_series.rb
@@ -28,9 +28,9 @@ module Axlsx
     def initialize(chart, options = {})
       @xData, @yData, @bubbleSize = nil
       super(chart, options)
-      @xData = AxDataSource.new(:tag_name => :xVal, :data => options[:xData]) unless options[:xData].nil?
-      @yData = NumDataSource.new({ :tag_name => :yVal, :data => options[:yData] }) unless options[:yData].nil?
-      @bubbleSize = NumDataSource.new({ :tag_name => :bubbleSize, :data => options[:bubbleSize] }) unless options[:bubbleSize].nil?
+      @xData = AxDataSource.new(tag_name: :xVal, data: options[:xData]) unless options[:xData].nil?
+      @yData = NumDataSource.new({ tag_name: :yVal, data: options[:yData] }) unless options[:yData].nil?
+      @bubbleSize = NumDataSource.new({ tag_name: :bubbleSize, data: options[:bubbleSize] }) unless options[:bubbleSize].nil?
     end
 
     # @see color