diff --git a/frontend/src/app/ntt-gantt/ntt-gantt.component.css b/frontend/src/app/ntt-gantt/ntt-gantt.component.css
index 70e9d1c..3681d4f 100644
--- a/frontend/src/app/ntt-gantt/ntt-gantt.component.css
+++ b/frontend/src/app/ntt-gantt/ntt-gantt.component.css
@@ -262,7 +262,7 @@
   /* Semi-transparent background */
   border: solid rgba(0, 0, 0, 0.1) 1px;
   border-bottom: none;
-  border-radius: 10px 10px 0px 0px;
+  border-radius: 5px 5px 0px 0px;
   height: 60px;
   padding-left: 10px;
   padding-right: 15px;