diff --git a/src/main/java/com/xkrs/utils/FirePointQueryHelper.java b/src/main/java/com/xkrs/utils/FirePointQueryHelper.java
index 908ab56..ca0562b 100644
--- a/src/main/java/com/xkrs/utils/FirePointQueryHelper.java
+++ b/src/main/java/com/xkrs/utils/FirePointQueryHelper.java
@@ -46,7 +46,7 @@ public class FirePointQueryHelper {
                 }
             }
             //限制最早开始时间不得早于一个月
-            LocalDateTime lastMonth1 = LocalDateTime.now().minusMonths(1);
+            LocalDateTime lastMonth1 = LocalDateTime.now().minusDays(30);
             LocalDateTime lastMonth2 = LocalDateTime.of(lastMonth1.getYear(), lastMonth1.getMonth(), lastMonth1.getDayOfMonth(), 0, 0, 0, 0);
             String lastMonthString = DateTimeUtils.localDateTimeToString(lastMonth2);
             predicateList.add(criteriaBuilder.greaterThanOrEqualTo(root.get("satelliteTime").as(String.class), lastMonthString));