diff --git a/server/src/domain/entities/IAppointment.ts b/server/src/domain/entities/IAppointment.ts
index d096d751..a543ce53 100644
--- a/server/src/domain/entities/IAppointment.ts
+++ b/server/src/domain/entities/IAppointment.ts
@@ -1,5 +1,5 @@
 import IDoctor from "./IDoctor";
-import IPatient  from "./IPatient";
+import IPatient from "./IPatient";
 import ISlot from "./ISlot";
 
 export enum AppointmentStatus {
@@ -21,7 +21,7 @@ export default interface IAppointment {
    readonly createdAt?: string;
    readonly updatedAt?: string;
    readonly appointmentType?: AppointmentType;
-   readonly appointmentDate?: string;
+   readonly appointmentDate?: string | Date;
    readonly reason?: string;
    readonly notes?: string;
    readonly paymentId?: string;
diff --git a/server/src/use_case/appointment/CreateAppointmentUseCase.ts b/server/src/use_case/appointment/CreateAppointmentUseCase.ts
index 45537000..acc12b45 100644
--- a/server/src/use_case/appointment/CreateAppointmentUseCase.ts
+++ b/server/src/use_case/appointment/CreateAppointmentUseCase.ts
@@ -29,7 +29,7 @@ export default class AppointmentUseCase {
 
       if (slot.status === "booked") {
          const bookedAppointment = await this.appointmentRepository.findByDateAndSlot(
-            appointmentData.appointmentDate!,
+            appointmentData.appointmentDate! as string,
             appointmentData.slotId!
          );
          if (bookedAppointment) throw new CustomError("Slot already booked", StatusCode.Conflict);
@@ -111,7 +111,7 @@ export default class AppointmentUseCase {
       this.validatorService.validateIdFormat(slotId!);
       this.validatorService.validateIdFormat(patientId!);
       this.validatorService.validateEnum(appointmentType!, Object.values(AppointmentType));
-      this.validatorService.validateDateFormat(appointmentDate!);
+      this.validatorService.validateDateFormat(appointmentDate! as string);
       this.validatorService.validateLength(reason!, 1, 255);
 
       if (notes) this.validatorService.validateLength(notes, 0, 255);