diff --git a/platform-operate-api/src/main/java/com/lyms/hospitalapi/v1/HisService.java b/platform-operate-api/src/main/java/com/lyms/hospitalapi/v1/HisService.java
index b13282a..5c6834b 100644
--- a/platform-operate-api/src/main/java/com/lyms/hospitalapi/v1/HisService.java
+++ b/platform-operate-api/src/main/java/com/lyms/hospitalapi/v1/HisService.java
@@ -41,15 +41,15 @@ public class HisService {
         Collections.sort(list, new Comparator() {
             public int compare(Object a, Object b) {
                 if (((CheckResponse)a).getModified() == null) {
-                    return 0;
+                    return 1;
                 }
                 if (((CheckResponse)b).getModified() == null) {
-                    return 0;
+                    return 1;
                 }
                 if (((CheckResponse)a).getModified().before(((CheckResponse)a).getModified())) {
-                    return 1;
+                    return 0;
                 }
-                return 0;
+                return 1;
             }
         });
         for (CheckResponse check:list) {