diff --git a/eladmin-system/src/main/java/cn/ysk/cashier/service/impl/shopimpl/TbShopTableServiceImpl.java b/eladmin-system/src/main/java/cn/ysk/cashier/service/impl/shopimpl/TbShopTableServiceImpl.java
index 63f1c302..72f8e4b1 100644
--- a/eladmin-system/src/main/java/cn/ysk/cashier/service/impl/shopimpl/TbShopTableServiceImpl.java
+++ b/eladmin-system/src/main/java/cn/ysk/cashier/service/impl/shopimpl/TbShopTableServiceImpl.java
@@ -1235,7 +1235,7 @@ public class TbShopTableServiceImpl implements TbShopTableService {
                 cashierCart.setTotalNumber(couponVo.getCurrentUseNum());
                 cashierCart.setUserCouponId(couponVo.getId());
                 discountAmount = discountAmount.add(totalAmountByNum);
-                couponVo.setCurrentUseNum(couponVo.getCurrentUseNum());
+                couponVo.setCurrentUseNum(couponVo.getCurrentUseNum() - cashierCart.getNumber());
                 currentUseNum = BigDecimal.valueOf(cashierCart.getNumber());