diff --git a/src/main/java/cn/stock/market/domain/basic/service/StockService.java b/src/main/java/cn/stock/market/domain/basic/service/StockService.java
index 5df92fe..f51a1a0 100644
--- a/src/main/java/cn/stock/market/domain/basic/service/StockService.java
+++ b/src/main/java/cn/stock/market/domain/basic/service/StockService.java
@@ -946,7 +946,7 @@ public class StockService {
 			vo1.setIndexVo(market);
 
 			String period = "P1D";
-			String interval = "PT1H";
+			String interval = "PT30M";
 			String type = "day";
 			List<JSONObject> list = InvestingApis.of().kIndex(stockCode,period,interval, type);
 			if(list == null || list.size() == 0){
@@ -966,7 +966,7 @@ public class StockService {
 			vo2.setIndexVo(market);
 
 			String period = "P1D";
-			String interval = "PT1H";
+			String interval = "PT30M";
 			String type = "day";
 			List<JSONObject> list = InvestingApis.of().kIndex(stockCode,period,interval, type);
 			if(list == null || list.size() == 0){