diff --git a/milvus/grpc/Data.ts b/milvus/grpc/Data.ts
index 827d0ac4..17e16867 100644
--- a/milvus/grpc/Data.ts
+++ b/milvus/grpc/Data.ts
@@ -156,6 +156,7 @@ export class Data extends Collection {
       fieldMap.set(DEFAULT_DYNAMIC_FIELD, {
         name: DEFAULT_DYNAMIC_FIELD,
         type: 'JSON',
+        elementType: 'None',
         data: [], // value container
       });
     }
diff --git a/milvus/types/Response.ts b/milvus/types/Response.ts
index e7ae4c44..6d877903 100644
--- a/milvus/types/Response.ts
+++ b/milvus/types/Response.ts
@@ -4,7 +4,8 @@ export enum ErrorCode {
   UNEXPECTED_ERROR = 'UnexpectedError',
   EMPTY_COLLECTION = 'EmptyCollection',
   UPSERT_AUTO_ID_TRUE = 'UpsertAutoIDTrue',
-  COLLECTION_NOT_EXISTS =  'CollectionNotExists'
+  COLLECTION_NOT_EXISTS = 'CollectionNotExists',
+  Illegal_Argument = 'IllegalArgument',
   // CONNECT_FAILED = "CONNECT_FAILED",
   // PERMISSION_DENIED = "PERMISSION_DENIED",
   // COLLECTION_NOT_EXISTS = "COLLECTION_NOT_EXISTS",
diff --git a/test/Upsert.spec.ts b/test/Upsert.spec.ts
index 42df04cd..6d0ede94 100644
--- a/test/Upsert.spec.ts
+++ b/test/Upsert.spec.ts
@@ -177,9 +177,7 @@ describe(`Upsert API`, () => {
 
     const res = await milvusClient.upsert(params);
 
-    console.log('res',vectorsData, res)
-
-    expect(res.status.error_code).toEqual(ErrorCode.UPSERT_AUTO_ID_TRUE);
+    expect(res.status.error_code).toEqual(ErrorCode.Illegal_Argument);
   });
 
   it(`Upsert Data on different scalar fields`, async () => {
diff --git a/test/tools/data.ts b/test/tools/data.ts
index 9d8eeae8..b1cfc913 100644
--- a/test/tools/data.ts
+++ b/test/tools/data.ts
@@ -125,7 +125,10 @@ export const genArray: DataGenerator = params => {
   });
 };
 
+export const genNone: DataGenerator = () => 'none';
+
 export const dataGenMap: { [key in DataType]: DataGenerator } = {
+  [DataType.None]: genNone,
   [DataType.Bool]: genBool,
   [DataType.Int8]: genInt,
   [DataType.Int16]: genInt,