diff --git a/app/api/endpoints/coupon.py b/app/api/endpoints/coupon.py
index aad82ec..49c4367 100644
--- a/app/api/endpoints/coupon.py
+++ b/app/api/endpoints/coupon.py
@@ -61,7 +61,7 @@ async def use_coupon(
 
     db.commit()
 
-    return success_response(data=CouponInfo.model_validate(coupon))
+    return success_response(data=UserCouponInfo.model_validate(coupon))
 
 
 @router.put("/{coupon_id}", response_model=ResponseModel)