diff --git a/src/components/absences/AbsenceBox.tsx b/src/components/absences/AbsenceBox.tsx
index 75dfcdc9..e274930c 100644
--- a/src/components/absences/AbsenceBox.tsx
+++ b/src/components/absences/AbsenceBox.tsx
@@ -66,6 +66,7 @@ const AbsenceBox: React.FC<AbsenceBoxProps> = ({
         maxWidth: '100%',
         boxShadow: isSelected ? '0px 0px 15px 6px rgba(0, 0, 0, 0.10)' : 'none',
         transition: 'box-shadow 0.3s ease',
+        zIndex: isSelected ? 100 : 0,
       }}
     >
       {lessonPlan && (