diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 5b71396..eaea0fa 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -152,6 +152,13 @@ enum MilestoneStatus {
   DELAYED
 }
 
+enum DisputeStatus {
+  OPEN
+  UNDER_REVIEW
+  RESOLVED
+  CANCELLED
+}
+
 // User model
 model User {
   id                       String    @id @default(uuid())
diff --git a/src/notifications/notifications.module.ts b/src/notifications/notifications.module.ts
index 7f91dc1..b6c5c32 100644
--- a/src/notifications/notifications.module.ts
+++ b/src/notifications/notifications.module.ts
@@ -1,4 +1,4 @@
-import { Module } from '@nestjs/common';
+import { Module, forwardRef } from '@nestjs/common';
 import { NotificationsGateway } from './notifications.gateway';
 import { NotificationsService } from './notifications.service';
 import { NotificationsController } from './notifications.controller';
diff --git a/src/users/dto/user-preferences.dto.ts b/src/users/dto/user-preferences.dto.ts
index aaf061d..935a75f 100644
--- a/src/users/dto/user-preferences.dto.ts
+++ b/src/users/dto/user-preferences.dto.ts
@@ -64,6 +64,10 @@ export class CreateUserPreferencesDto {
   inAppNotifications?: boolean;
 
   @ApiPropertyOptional()
+  @IsOptional()
+  @IsBoolean()
+  inAppNotifications?: boolean;
+
   @IsOptional()
   @IsBoolean()
   propertyAlerts?: boolean;
@@ -121,6 +125,10 @@ export class UpdateUserPreferencesDto {
   inAppNotifications?: boolean;
 
   @ApiPropertyOptional()
+  @IsOptional()
+  @IsBoolean()
+  inAppNotifications?: boolean;
+
   @IsOptional()
   @IsBoolean()
   propertyAlerts?: boolean;