diff --git a/demo-distributed-lock/demo-distributed-lock-api/src/main/java/com/xkcoding/distributed/lock/service/StockService.java b/demo-distributed-lock/demo-distributed-lock-api/src/main/java/com/xkcoding/distributed/lock/service/StockService.java
index 19e8146..72cf86f 100644
--- a/demo-distributed-lock/demo-distributed-lock-api/src/main/java/com/xkcoding/distributed/lock/service/StockService.java
+++ b/demo-distributed-lock/demo-distributed-lock-api/src/main/java/com/xkcoding/distributed/lock/service/StockService.java
@@ -26,7 +26,7 @@ public class StockService {
     /**
      * 减货物
      */
-    @DLock(lockKey = "'lock_stock_'+#stockId", lockTime = 3000, timeUnit = TimeUnit.MICROSECONDS, fastFail = false)
+    @DLock(lockKey = "'lock_stock_'+#stockId", lockTime = 3000, timeUnit = TimeUnit.MILLISECONDS, fastFail = false)
     public void reduceStock(Long stockId) {
         // 先查询库存是否充足
         Stock stock = this.stockMapper.selectById(stockId);