diff --git a/src/main/java/com/ffii/tsms/modules/project/service/ProjectsService.kt b/src/main/java/com/ffii/tsms/modules/project/service/ProjectsService.kt
index e86aeed..a78fca7 100644
--- a/src/main/java/com/ffii/tsms/modules/project/service/ProjectsService.kt
+++ b/src/main/java/com/ffii/tsms/modules/project/service/ProjectsService.kt
@@ -172,9 +172,9 @@ open class ProjectsService(
                 this.taskGroup = taskGroupMap[taskStageId]
                 this.startDate = requestMilestone?.startDate?.let { LocalDate.parse(it) }
                 this.endDate = requestMilestone?.endDate?.let { LocalDate.parse(it) }
+                this.milestonePayments.removeAll(this.milestonePayments)
                 requestMilestone?.payments?.map {
                     val milestonePayment = if (it.id > 0) milestonePaymentRepository.findById(it.id).orElse(MilestonePayment()) else MilestonePayment()
-
                     this.milestonePayments.add(milestonePayment.apply {
                         this.milestone = newMilestone
                         this.description = it.description