diff --git a/src/pages/course/course-scatter/course-scatter.ts b/src/pages/course/course-scatter/course-scatter.ts
index 728224c..d841df9 100644
--- a/src/pages/course/course-scatter/course-scatter.ts
+++ b/src/pages/course/course-scatter/course-scatter.ts
@@ -140,7 +140,7 @@ export default class CourseScatter extends Vue
         {
             type: 'line',
             markLine: GraphUtils.getTermLines(),
-            markArea: GraphUtils.getGradeMarkAreas(1)
+            markArea: GraphUtils.getGradeMarkAreas(0.4)
         });
 
         return series;