diff --git a/src/main/java/com/chinaweal/youfool/holiday/sdk/HolidayCalculator.java b/src/main/java/com/chinaweal/youfool/holiday/sdk/HolidayCalculator.java
index f004fce..4666124 100644
--- a/src/main/java/com/chinaweal/youfool/holiday/sdk/HolidayCalculator.java
+++ b/src/main/java/com/chinaweal/youfool/holiday/sdk/HolidayCalculator.java
@@ -11,10 +11,10 @@ import java.time.DayOfWeek;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.LocalTime;
-import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Vector;
 
 /**
  * 假期计算器
@@ -40,7 +40,7 @@ public abstract class HolidayCalculator {
     /**
      * 工作时间列表
      */
-    private static final List<TimeRange> WORK_TIME_LIST = new ArrayList<>(10);
+    private static final List<TimeRange> WORK_TIME_LIST = new Vector<>(10);
 
     /**
      * 是否初始化
diff --git a/src/main/java/com/chinaweal/youfool/holiday/sdk/data/manager/LocationHolidayDataManager.java b/src/main/java/com/chinaweal/youfool/holiday/sdk/data/manager/LocationHolidayDataManager.java
index d83b378..0e9f495 100644
--- a/src/main/java/com/chinaweal/youfool/holiday/sdk/data/manager/LocationHolidayDataManager.java
+++ b/src/main/java/com/chinaweal/youfool/holiday/sdk/data/manager/LocationHolidayDataManager.java
@@ -74,6 +74,7 @@ public class LocationHolidayDataManager extends AbstractHolidayDataManager {
             } catch (IOException e) {
             }
         }
+        timestamp = System.currentTimeMillis();
         return data;
     }
 }
diff --git a/src/main/java/com/chinaweal/youfool/holiday/sdk/data/manager/OnlineHolidayDataManager.java b/src/main/java/com/chinaweal/youfool/holiday/sdk/data/manager/OnlineHolidayDataManager.java
index d3bbaac..95e73a7 100644
--- a/src/main/java/com/chinaweal/youfool/holiday/sdk/data/manager/OnlineHolidayDataManager.java
+++ b/src/main/java/com/chinaweal/youfool/holiday/sdk/data/manager/OnlineHolidayDataManager.java
@@ -34,6 +34,7 @@ public class OnlineHolidayDataManager extends AbstractHolidayDataManager {
     @Override
     public List<Holiday> flushData() {
         LocalDate now = LocalDate.now();
+        timestamp = System.currentTimeMillis();
         List<Holiday> holiday1 = getDataFromApi(now.getYear());
         List<Holiday> holiday2 = getDataFromApi(now.getYear() + 1);
         List<Holiday> allList = new ArrayList<>(holiday1.size() + holiday2.size());