diff --git a/nl-module-lms/nl-module-lms-server/src/main/java/cn/code/nl/module/lms/service/dailyplan/DailyPlanScheduleServiceImpl.java b/nl-module-lms/nl-module-lms-server/src/main/java/cn/code/nl/module/lms/service/dailyplan/DailyPlanScheduleServiceImpl.java
index 6253fd8a..5f126a5f 100644
--- a/nl-module-lms/nl-module-lms-server/src/main/java/cn/code/nl/module/lms/service/dailyplan/DailyPlanScheduleServiceImpl.java
+++ b/nl-module-lms/nl-module-lms-server/src/main/java/cn/code/nl/module/lms/service/dailyplan/DailyPlanScheduleServiceImpl.java
@@ -180,6 +180,10 @@ public class DailyPlanScheduleServiceImpl implements DailyPlanScheduleService {
         if (plan == null) {
             throw exception(DAILY_PLAN_NOT_EXISTS);
         }
+        if (!plan.getVersion().equals(claim.getPlanVersion())) {
+            // 领取后的任何计划变更都会使旧领取失效；不确认 claim，调用方可处理冲突后主动释放或续租。
+            throw exception(DAILY_PLAN_VERSION_CONFLICT);
+        }
         Integer workStatus = type == DailyPlanStrategyTypeEnum.STOCKING
                 ? plan.getStockingStatus() : plan.getSleevingStatus();
         if (!DailyPlanOrderStatusEnum.IN_PROGRESS.getCode().equals(plan.getOrderStatus())
@@ -193,8 +197,8 @@ public class DailyPlanScheduleServiceImpl implements DailyPlanScheduleService {
             throw exception(DAILY_PLAN_COMPLETED_QTY_EXCEEDS_TOTAL);
         }
         int affected = type == DailyPlanStrategyTypeEnum.STOCKING
-                ? dailyPlanMapper.increaseStockedQuantity(dailyPlanId, quantity, plan.getVersion(), normalizedOperator(operator))
-                : dailyPlanMapper.increaseSleevedQuantity(dailyPlanId, quantity, plan.getVersion(), normalizedOperator(operator));
+                ? dailyPlanMapper.increaseStockedQuantity(dailyPlanId, quantity, version, normalizedOperator(operator))
+                : dailyPlanMapper.increaseSleevedQuantity(dailyPlanId, quantity, version, normalizedOperator(operator));
         if (affected != 1) {
             throw exception(DAILY_PLAN_VERSION_CONFLICT);
         }