diff --git a/frontend/src/components/dashboard/UpcomingWidget.tsx b/frontend/src/components/dashboard/UpcomingWidget.tsx
index ce68fd1..5450f89 100644
--- a/frontend/src/components/dashboard/UpcomingWidget.tsx
+++ b/frontend/src/components/dashboard/UpcomingWidget.tsx
@@ -251,7 +251,7 @@ export default function UpcomingWidget({ items }: UpcomingWidgetProps) {
                     <button
                       onClick={() => toggleDay(dateKey)}
                       className={cn(
-                        'sticky top-0 z-10 w-full flex items-center gap-1.5 py-0.5 border-b border-border/30 cursor-pointer select-none leading-none',
+                        'sticky top-0 z-10 w-full flex items-center gap-1.5 py-0.5 border-b border-border cursor-pointer select-none leading-none',
                         groupIdx === 0 ? 'pt-0' : 'mt-2'
                       )}
                     >