diff --git a/src/components/DatePicker.tsx b/src/components/DatePicker.tsx
index 7e5d06a..1725c9b 100644
--- a/src/components/DatePicker.tsx
+++ b/src/components/DatePicker.tsx
@@ -35,15 +35,21 @@ const DatePickerComponent: FC<Props> = (props: Props) => {
     }, [value]);
 
     useEffect(() => {
-        if (props.defaulValue && !value) {
+        if (props.defaulValue) {
             const defaultDate = new DateObject({
                 date: props.defaulValue,
                 calendar: persian,
                 locale: persian_fa,
             });
-            setValue(defaultDate);
+            const currentValueStr = value ? `${value.year}-${value.month.number}-${value.day}` : null;
+            const defaultValueStr = `${defaultDate.year}-${defaultDate.month.number}-${defaultDate.day}`;
+            if (currentValueStr !== defaultValueStr) {
+                setValue(defaultDate);
+            }
+        } else if (!props.defaulValue && value) {
+            setValue(null);
         }
-    }, [props.defaulValue, value]);
+    }, [props.defaulValue]);
 
     return (
         <div className="w-full">
diff --git a/src/pages/coupon/Update.tsx b/src/pages/coupon/Update.tsx
new file mode 100644
index 0000000..cf5558e
--- /dev/null
+++ b/src/pages/coupon/Update.tsx
@@ -0,0 +1,174 @@
+import { type FC, useState, useMemo, useEffect } from 'react'
+import { useParams, useNavigate } from 'react-router-dom'
+import { useFormik } from 'formik'
+import * as Yup from 'yup'
+import { TickCircle } from 'iconsax-react'
+import { toast } from 'react-toastify'
+import Button from '@/components/Button'
+import type { CreateCouponType } from './types/Types'
+import { useGetCouponDetails, useUpdateCoupon } from './hooks/useCouponData'
+import { useGetCategories } from '@/pages/food/hooks/useFoodData'
+import { useGetFoods } from '@/pages/food/hooks/useFoodData'
+import { Pages } from '@/config/Pages'
+import type { ErrorType } from '@/helpers/types'
+import { extractErrorMessage } from '@/config/func'
+import CouponBasicInfo from './components/CouponBasicInfo'
+import CouponDiscountSettings from './components/CouponDiscountSettings'
+import CouponUsageSettings from './components/CouponUsageSettings'
+import CouponSidebar from './components/CouponSidebar'
+
+const UpdateCoupon: FC = () => {
+    const navigate = useNavigate()
+    const { id } = useParams<{ id: string }>()
+    const { data: couponData, isLoading } = useGetCouponDetails(id || '')
+    const { mutate: updateCoupon, isPending: isUpdating } = useUpdateCoupon()
+    const { data: categoriesData } = useGetCategories()
+    const { data: foodsData } = useGetFoods()
+
+    const [couponType, setCouponType] = useState<'PERCENTAGE' | 'FIXED'>('PERCENTAGE')
+
+    const categories = useMemo(() => categoriesData?.data || [], [categoriesData?.data])
+    const foods = useMemo(() => foodsData?.data || [], [foodsData?.data])
+
+    const formik = useFormik<CreateCouponType>({
+        initialValues: {
+            code: '',
+            name: '',
+            description: '',
+            value: 0,
+            maxDiscount: null,
+            minOrderAmount: 0,
+            maxUses: 0,
+            maxUsesPerUser: null,
+            startDate: null,
+            endDate: null,
+            isActive: true,
+            foodCategories: [],
+            foods: [],
+            userPhone: '',
+            type: 'PERCENTAGE',
+        },
+        validationSchema: Yup.object().shape({
+            type: Yup.string().required('نوع کوپن الزامی است'),
+            code: Yup.string().required('کد کوپن الزامی است'),
+            name: Yup.string().required('نام کوپن الزامی است'),
+            description: Yup.string(),
+            value: Yup.number().min(0, 'مقدار باید بیشتر از صفر باشد').required('مقدار کوپن الزامی است'),
+            maxDiscount: Yup.number().nullable().min(0, 'حداکثر تخفیف باید بیشتر از صفر باشد'),
+            minOrderAmount: Yup.number().min(0, 'حداقل مبلغ سفارش باید بیشتر از صفر باشد').required('حداقل مبلغ سفارش الزامی است'),
+            maxUses: Yup.number().min(0, 'حداکثر استفاده باید بیشتر از صفر باشد').required('حداکثر استفاده الزامی است'),
+            maxUsesPerUser: Yup.number().nullable().min(0, 'حداکثر استفاده برای هر کاربر باید بیشتر از صفر باشد'),
+            startDate: Yup.string().nullable(),
+            endDate: Yup.string().nullable(),
+            userPhone: Yup.string().nullable(),
+        }),
+        enableReinitialize: true,
+        onSubmit: (values) => {
+            if (!id) {
+                toast.error('شناسه کوپن یافت نشد')
+                return
+            }
+
+            const submitValues = {
+                ...values,
+                userPhone: values.userPhone?.trim() || undefined,
+            }
+            updateCoupon(
+                { id, params: submitValues },
+                {
+                    onSuccess: () => {
+                        toast.success('کوپن با موفقیت به‌روزرسانی شد')
+                        navigate(Pages.coupons.list)
+                    },
+                    onError: (error: ErrorType) => {
+                        toast.error(extractErrorMessage(error))
+                    },
+                }
+            )
+        },
+    })
+
+    useEffect(() => {
+        if (couponData?.data) {
+            const coupon = couponData.data
+            setCouponType(coupon.type)
+            formik.setValues({
+                code: coupon.code,
+                name: coupon.name,
+                description: coupon.description || '',
+                value: coupon.value,
+                maxDiscount: coupon.maxDiscount,
+                minOrderAmount: coupon.minOrderAmount,
+                maxUses: coupon.maxUses,
+                maxUsesPerUser: coupon.maxUsesPerUser,
+                startDate: coupon.startDate,
+                endDate: coupon.endDate,
+                isActive: coupon.isActive,
+                foodCategories: coupon.foodCategories || [],
+                foods: coupon.foods || [],
+                userPhone: coupon.userPhone || '',
+                type: coupon.type,
+            })
+        }
+        // eslint-disable-next-line react-hooks/exhaustive-deps
+    }, [couponData?.data])
+
+    if (isLoading) {
+        return (
+            <div className='mt-5'>
+                <div className='text-center'>در حال بارگذاری...</div>
+            </div>
+        )
+    }
+
+    return (
+        <div className='mt-5'>
+            <div className='flex justify-between items-center mb-6'>
+                <h1 className='text-lg font-light'>ویرایش کد تخفیف</h1>
+            </div>
+
+            <div className='flex justify-end'>
+                <Button
+                    className='flex gap-4 w-fit px-5'
+                    isloading={isUpdating}
+                    onClick={() => formik.handleSubmit()}
+                >
+                    <div className='flex gap-2 items-center'>
+                        <TickCircle color='white' size={20} className='ml-2' />
+                        <span>ویرایش تخفیف</span>
+                    </div>
+                </Button>
+            </div>
+
+            <div className='flex gap-7 mt-7'>
+                <div className='flex-1'>
+                    <div className='bg-white rounded-4xl p-8'>
+                        <div className='text-lg font-light mb-6'>ویرایش کد تخفیف</div>
+
+                        <CouponBasicInfo
+                            formik={formik}
+                        />
+
+                        <CouponDiscountSettings
+                            formik={formik}
+                            couponType={couponType}
+                            onCouponTypeChange={setCouponType}
+                        />
+
+                        <CouponUsageSettings formik={formik} />
+                    </div>
+                </div>
+
+                <div className='w-80 flex-shrink-0'>
+                    <CouponSidebar
+                        formik={formik}
+                        categories={categories}
+                        foods={foods}
+                    />
+                </div>
+            </div>
+        </div>
+    )
+}
+
+export default UpdateCoupon
\ No newline at end of file
diff --git a/src/pages/coupon/components/CouponUsageSettings.tsx b/src/pages/coupon/components/CouponUsageSettings.tsx
index a544d35..91dff76 100644
--- a/src/pages/coupon/components/CouponUsageSettings.tsx
+++ b/src/pages/coupon/components/CouponUsageSettings.tsx
@@ -16,6 +16,12 @@ const CouponUsageSettings: FC<CouponUsageSettingsProps> = ({ formik }) => {
         return gregorianDate
     }
 
+    const convertToPersian = (gregorianDate: string | null): string | undefined => {
+        if (!gregorianDate) return undefined
+        const persianDate = moment(gregorianDate, 'YYYY-MM-DD').format('jYYYY-jMM-jDD')
+        return persianDate
+    }
+
     return (
         <>
             <div className='grid grid-cols-2 gap-4 mb-6'>
@@ -44,16 +50,20 @@ const CouponUsageSettings: FC<CouponUsageSettingsProps> = ({ formik }) => {
 
             <div className='grid grid-cols-2 gap-4 mb-6'>
                 <DatePickerComponent
+                    key={`startDate-${formik.values.startDate || 'empty'}`}
                     label='تاریخ شروع'
                     placeholder='تاریخ شروع را انتخاب کنید'
+                    defaulValue={convertToPersian(formik.values.startDate)}
                     onChange={(date) => {
                         const gregorianDate = convertToGregorian(date)
                         formik.setFieldValue('startDate', gregorianDate)
                     }}
                 />
                 <DatePickerComponent
+                    key={`endDate-${formik.values.endDate || 'empty'}`}
                     label='تاریخ پایان'
                     placeholder='تاریخ پایان را انتخاب کنید'
+                    defaulValue={convertToPersian(formik.values.endDate)}
                     onChange={(date) => {
                         const gregorianDate = convertToGregorian(date)
                         formik.setFieldValue('endDate', gregorianDate)
diff --git a/src/pages/coupon/hooks/useCouponData.ts b/src/pages/coupon/hooks/useCouponData.ts
index facb80c..8d3e2ab 100644
--- a/src/pages/coupon/hooks/useCouponData.ts
+++ b/src/pages/coupon/hooks/useCouponData.ts
@@ -1,5 +1,6 @@
 import * as api from "../service/CouponService";
 import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
+import type { CreateCouponType } from "../types/Types";
 
 export const useGetCoupons = () => {
   return useQuery({
@@ -37,3 +38,27 @@ export const useGenerateCouponCode = () => {
     mutationFn: api.generateCouponCode,
   });
 };
+
+export const useGetCouponDetails = (id: string) => {
+  return useQuery({
+    queryKey: ["coupon", id],
+    queryFn: () => api.getCouponDetails(id),
+    enabled: !!id,
+  });
+};
+
+export const useUpdateCoupon = () => {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({ id, params }: { id: string; params: CreateCouponType }) =>
+      api.updateCoupon(id, params),
+    onSuccess: (_, { id }) => {
+      queryClient.invalidateQueries({
+        queryKey: ["coupons"],
+      });
+      queryClient.invalidateQueries({
+        queryKey: ["coupon", id],
+      });
+    },
+  });
+};
diff --git a/src/pages/coupon/service/CouponService.ts b/src/pages/coupon/service/CouponService.ts
index 6473af6..e72bd19 100644
--- a/src/pages/coupon/service/CouponService.ts
+++ b/src/pages/coupon/service/CouponService.ts
@@ -1,5 +1,9 @@
 import axios from "@/config/axios";
-import type { CreateCouponType, IGetCouponsResponse } from "../types/Types";
+import type {
+  CreateCouponType,
+  IGetCouponsResponse,
+  IGetCouponDetailsResponse,
+} from "../types/Types";
 
 export const getCoupons = async (): Promise<IGetCouponsResponse> => {
   const { data } = await axios.get<IGetCouponsResponse>("/admin/coupons");
@@ -20,3 +24,17 @@ export const generateCouponCode = async () => {
   const { data } = await axios.get(`/admin/coupons/generate-code`);
   return data;
 };
+
+export const getCouponDetails = async (
+  id: string
+): Promise<IGetCouponDetailsResponse> => {
+  const { data } = await axios.get<IGetCouponDetailsResponse>(
+    `/admin/coupons/${id}`
+  );
+  return data;
+};
+
+export const updateCoupon = async (id: string, params: CreateCouponType) => {
+  const { data } = await axios.patch(`/admin/coupons/${id}`, params);
+  return data;
+};
diff --git a/src/pages/coupon/types/Types.ts b/src/pages/coupon/types/Types.ts
index 7809596..7b30d83 100644
--- a/src/pages/coupon/types/Types.ts
+++ b/src/pages/coupon/types/Types.ts
@@ -1,4 +1,5 @@
 import type { IResponse } from "@/types/response.types";
+import type { Restaurant } from "@/pages/paymentMethods/types/Types";
 
 export type CouponType = "PERCENTAGE" | "FIXED";
 
@@ -24,8 +25,34 @@ export interface ICoupon {
   [key: string]: unknown;
 }
 
+export interface ICouponDetails {
+  id: string;
+  createdAt: string;
+  updatedAt: string;
+  deletedAt: string | null;
+  restaurant: Restaurant;
+  code: string;
+  name: string;
+  description: string;
+  type: CouponType;
+  value: number;
+  maxDiscount: number | null;
+  minOrderAmount: number;
+  maxUses: number;
+  usedCount: number;
+  maxUsesPerUser: number | null;
+  startDate: string | null;
+  endDate: string | null;
+  isActive: boolean;
+  foodCategories: string[];
+  foods: string[];
+  userPhone: string | null;
+}
+
 export type IGetCouponsResponse = IResponse<ICoupon[]>;
 
+export type IGetCouponDetailsResponse = IResponse<ICouponDetails>;
+
 export type CreateCouponType = {
   code: string;
   name: string;
diff --git a/src/router/Main.tsx b/src/router/Main.tsx
index 5b99dd5..88c2207 100644
--- a/src/router/Main.tsx
+++ b/src/router/Main.tsx
@@ -35,6 +35,7 @@ import CreateShipmentMethod from '@/pages/shipmentMethod/Create'
 import UpdateShipmentMethod from '@/pages/shipmentMethod/Update'
 import CouponsList from '@/pages/coupon/List'
 import CreateCoupon from '@/pages/coupon/Create'
+import UpdateCoupon from '@/pages/coupon/Update'
 const MainRouter: FC = () => {
 
     const { hasSubMenu } = useSharedStore()
@@ -85,6 +86,7 @@ const MainRouter: FC = () => {
 
                             <Route path={Pages.coupons.list} element={<CouponsList />} />
                             <Route path={Pages.coupons.add} element={<CreateCoupon />} />
+                            <Route path={Pages.coupons.update + ':id'} element={<UpdateCoupon />} />
                         </Routes>
                     </div>
                 </div>