diff --git a/kicc-platform/kicc-platform-biz/kicc-workflow-biz/src/main/java/com/cloud/kicc/workflow/cmd/RollBackUserTaskCmd.java b/kicc-platform/kicc-platform-biz/kicc-workflow-biz/src/main/java/com/cloud/kicc/workflow/cmd/RollBackUserTaskCmd.java
index 290866fa..226445b9 100644
--- a/kicc-platform/kicc-platform-biz/kicc-workflow-biz/src/main/java/com/cloud/kicc/workflow/cmd/RollBackUserTaskCmd.java
+++ b/kicc-platform/kicc-platform-biz/kicc-workflow-biz/src/main/java/com/cloud/kicc/workflow/cmd/RollBackUserTaskCmd.java
@@ -36,7 +36,7 @@ import java.util.stream.Collectors;
  */
 public class RollBackUserTaskCmd implements Command<String>, Serializable {
 
-    public static final long serialVersionUID = 1L;
+    private static final long serialVersionUID = 1L;
 
     protected RuntimeService runtimeService;
     protected String taskId;