diff --git a/src/bounties/dto/create-bounty.dto.ts b/src/bounties/dto/create-bounty.dto.ts
index 24d5276..a0b5f4d 100644
--- a/src/bounties/dto/create-bounty.dto.ts
+++ b/src/bounties/dto/create-bounty.dto.ts
@@ -5,6 +5,7 @@ import {
   IsMoneyAmount,
   IsSupportedEscrowAsset,
 } from '../../common/validators/money.validator';
+import { IsFutureDate } from '../../common/validators/date.validator';
 
 export class CreateBountyDto {
   @ApiProperty({
@@ -35,5 +36,6 @@ export class CreateBountyDto {
   @ApiProperty({ required: false })
   @IsOptional()
   @IsISO8601()
+  @IsFutureDate()
   deadline?: string;
 }
diff --git a/src/common/validators/date.validator.ts b/src/common/validators/date.validator.ts
new file mode 100644
index 0000000..2645069
--- /dev/null
+++ b/src/common/validators/date.validator.ts
@@ -0,0 +1,33 @@
+import {
+  registerDecorator,
+  ValidationOptions,
+  ValidatorConstraint,
+  ValidatorConstraintInterface,
+  ValidationArguments,
+} from 'class-validator';
+
+@ValidatorConstraint({ name: 'isFutureDate', async: false })
+export class IsFutureDateConstraint implements ValidatorConstraintInterface {
+  validate(propertyValue: string, args: ValidationArguments) {
+    if (!propertyValue) return true;
+    const date = new Date(propertyValue);
+    if (isNaN(date.getTime())) return false;
+    return date.getTime() > Date.now();
+  }
+
+  defaultMessage(args: ValidationArguments) {
+    return 'Deadline must be in the future';
+  }
+}
+
+export function IsFutureDate(validationOptions?: ValidationOptions) {
+  return function (object: Object, propertyName: string) {
+    registerDecorator({
+      target: object.constructor,
+      propertyName: propertyName,
+      options: validationOptions,
+      constraints: [],
+      validator: IsFutureDateConstraint,
+    });
+  };
+}