diff --git a/pkg/scheduler/frameworkext/reservation_info.go b/pkg/scheduler/frameworkext/reservation_info.go
index 2eca66baf..3368bfa34 100644
--- a/pkg/scheduler/frameworkext/reservation_info.go
+++ b/pkg/scheduler/frameworkext/reservation_info.go
@@ -378,6 +378,9 @@ func (ri *ReservationInfo) UpdateReservation(r *schedulingv1alpha1.Reservation)
 	if ri.Allocated != nil {
 		ri.Allocated = quotav1.Mask(ri.Allocated, ri.ResourceNames)
 	}
+	reserved := util.GetNodeReservationFromAnnotation(r.Annotations)
+	ri.Reserved = reserved
+
 	ownerMatchers, err := reservationutil.ParseReservationOwnerMatchers(r.Spec.Owners)
 	if err != nil {
 		klog.ErrorS(err, "Failed to parse reservation owner matchers", "reservation", klog.KObj(r))
@@ -407,6 +410,8 @@ func (ri *ReservationInfo) UpdatePod(pod *corev1.Pod) {
 	ri.Pod = pod
 	ri.AllocatablePorts = util.RequestedHostPorts(pod)
 	ri.Allocated = quotav1.Mask(ri.Allocated, ri.ResourceNames)
+	reserved := util.GetNodeReservationFromAnnotation(pod.Annotations)
+	ri.Reserved = reserved
 
 	owners, err := apiext.GetReservationOwners(pod.Annotations)
 	if err != nil {
diff --git a/pkg/scheduler/frameworkext/reservation_info_test.go b/pkg/scheduler/frameworkext/reservation_info_test.go
index 93595176e..483bf8d45 100644
--- a/pkg/scheduler/frameworkext/reservation_info_test.go
+++ b/pkg/scheduler/frameworkext/reservation_info_test.go
@@ -483,6 +483,28 @@ func TestReservationInfoUpdateReservation(t *testing.T) {
 				ParseError:    nil,
 			},
 		},
+		{
+			name:        "reservation's reserved has changed",
+			reservation: reservation,
+			newReservation: func() *schedulingv1alpha1.Reservation {
+				r := reservation.DeepCopy()
+				if r.Annotations == nil {
+					r.Annotations = map[string]string{}
+				}
+				r.Annotations[apiext.AnnotationNodeReservation] = `{"resources": {"cpu": "1"}}`
+				return r
+			}(),
+			want: &ReservationInfo{
+				ResourceNames: []corev1.ResourceName{corev1.ResourceCPU, corev1.ResourceMemory},
+				Allocatable:   allocatable.DeepCopy(),
+				Reserved: map[corev1.ResourceName]resource.Quantity{
+					corev1.ResourceCPU: resource.MustParse("1"),
+				},
+				AssignedPods:  map[types.UID]*PodRequirement{},
+				OwnerMatchers: ownerMatchers,
+				ParseError:    nil,
+			},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {