diff --git a/mock/chart.js b/mock/chart.js
index 43eec3cf815811d02ed717f480c87fcdd35f5503..286a0ba393efdbd67ea0461a17b409b659be6985 100644
--- a/mock/chart.js
+++ b/mock/chart.js
@@ -3,7 +3,7 @@ import moment from 'moment';
 // mock data
 const visitData = [];
 const beginDay = new Date().getTime();
-for (let i = 0; i < 7; i += 1) {
+for (let i = 0; i < 30; i += 1) {
   visitData.push({
     x: moment(new Date(beginDay + (1000 * 60 * 60 * 24 * i))).format('YYYY-MM-DD'),
     y: Math.floor(Math.random() * 100) + 10,