diff --git a/v8/src/main/java/org/apache/zeppelin/iginx/IginxInterpreter8.java b/v8/src/main/java/org/apache/zeppelin/iginx/IginxInterpreter8.java
index 6a686d3..018783c 100644
--- a/v8/src/main/java/org/apache/zeppelin/iginx/IginxInterpreter8.java
+++ b/v8/src/main/java/org/apache/zeppelin/iginx/IginxInterpreter8.java
@@ -12,7 +12,7 @@
 import cn.edu.tsinghua.iginx.thrift.SqlType;
 import cn.edu.tsinghua.iginx.utils.FormatUtils;
 import cn.edu.tsinghua.iginx.utils.Pair;
-import com.google.gson.Gson;
+import com.alibaba.fastjson2.JSON;
 import java.io.*;
 import java.math.BigDecimal;
 import java.math.RoundingMode;
@@ -372,8 +372,8 @@ public String buildTreeForShowColumns(SessionExecuteSqlResult sqlResult, String
       }
       List<HighchartsTreeNode> nodeList = new ArrayList<>();
       int depth = tree.traverseToHighchartsTreeNodes(tree.getRoot(), nodeList);
-      Gson gson = new Gson();
-      String jsonString = gson.toJson(nodeList);
+
+      String jsonString = JSON.toJSONString(nodeList);
       String html =
           content
               .toString()