app/assets/javascripts/highcharts/modules/drilldown.js in highcharts-rails-5.0.4 vs app/assets/javascripts/highcharts/modules/drilldown.js in highcharts-rails-5.0.5

@@ -1,7 +1,7 @@
 /**
- * @license Highcharts JS v5.0.4 (2016-11-25)
+ * @license Highcharts JS v5.0.5 (2016-11-29)
  * Highcharts Drilldown module
  * 
  * Author: Torstein Honsi
  * License: www.highcharts.com/license
  *
@@ -20,10 +20,11 @@
          * Author: Torstein Honsi
          * License: www.highcharts.com/license
          *
          */
 
+        'use strict';
 
         var noop = H.noop,
             color = H.color,
             defaultOptions = H.defaultOptions,
             each = H.each,
@@ -72,10 +73,15 @@
         /**
          * Handle animation of the color attributes directly
          */
         each(['fill', 'stroke'], function(prop) {
             H.Fx.prototype[prop + 'Setter'] = function() {
-                this.elem.attr(prop, tweenColors(color(this.start), color(this.end), this.pos));
+                this.elem.attr(
+                    prop,
+                    tweenColors(color(this.start), color(this.end), this.pos),
+                    null,
+                    true
+                );
             };
         });
 
         // Add language
         extend(defaultOptions.lang, {