diff --git a/msg-center-api/src/main/java/cn/axzo/msg/center/service/pending/response/v3/model/ParsedModelV3.java b/msg-center-api/src/main/java/cn/axzo/msg/center/service/pending/response/v3/model/ParsedModelV3.java
index 996f9c3f..70b5094a 100644
--- a/msg-center-api/src/main/java/cn/axzo/msg/center/service/pending/response/v3/model/ParsedModelV3.java
+++ b/msg-center-api/src/main/java/cn/axzo/msg/center/service/pending/response/v3/model/ParsedModelV3.java
@@ -98,6 +98,7 @@ public class ParsedModelV3 implements MessageButtonProvider<ParsedButtonV3>, Pus
 
     public void sortButtons() {
         if (buttons == null) return;
+        this.buttons = new ArrayList<>(buttons);
         buttons.sort(Comparator.comparingInt(ParsedButtonV3::determinePriority));
     }