diff --git a/src/components/Chart.vue b/src/components/Chart.vue
index ea3244a..dc95fc4 100644
--- a/src/components/Chart.vue
+++ b/src/components/Chart.vue
@@ -88,4 +88,8 @@ export default {
   fill: $primary;
   stroke: $primary;
 }
+.highcharts-xaxis-grid .highcharts-grid-line {
+  stroke-width: 1px;
+  stroke: #d8d8d8;
+}
 </style>