diff --git a/dist/mg_line_brushing.js b/dist/mg_line_brushing.js
index 9af288e..6147d2b 100644
--- a/dist/mg_line_brushing.js
+++ b/dist/mg_line_brushing.js
@@ -50,7 +50,7 @@ function get_brush_interval(args) {
 
     if (!resolution) {
         if (args.time_series) {
-            resolution = d3.time.day;
+            resolution = d3.timeDay;
         } else {
             resolution = 1;
         }
@@ -145,11 +145,9 @@ function brushing() {
         .classed('mg-brush', true);
 
     extentRect = brushingGroup.append('rect')
-        .attr({
-            opacity: 0,
-            y: args.top,
-            height: args.height - args.bottom - args.top - args.buffer
-        })
+        .attr('opacity', 0)
+        .attr('y', args.top)
+        .attr('height', args.height - args.bottom - args.top - args.buffer)
         .classed('mg-extent', true);
 
     // mousedown, start area selection
@@ -176,11 +174,10 @@ function brushing() {
                 newX = Math.min(originX, mouseX),
                 width = Math.max(originX, mouseX) - newX;
 
-            extentRect.attr({
-                x: newX,
-                width: width,
-                opacity: 1
-            });
+            extentRect
+                .attr('x', newX)
+                .attr('width', width)
+                .attr('opacity', 1);
         }
     });
 
@@ -189,8 +186,7 @@ function brushing() {
         mouseDown = false;
         svg.classed('mg-brushing-in-progress', false);
 
-        var args = chartContext.args,
-            xScale = args.scales.X,
+        var xScale = args.scales.X,
             yScale = args.scales.Y,
             flatData = [].concat.apply([], args.data),
             boundedData,