diff --git a/milvus/grpc/MilvusIndex.ts b/milvus/grpc/MilvusIndex.ts
index 29c55a23..e1ce19da 100644
--- a/milvus/grpc/MilvusIndex.ts
+++ b/milvus/grpc/MilvusIndex.ts
@@ -183,7 +183,7 @@ export class Index extends Data {
    * @returns {Promise<ListIndexResponse>} A Promise that resolves to an array of strings representing the names of indexes associated with the specified collection.
    * @returns {Object} return.status - An object with properties 'error_code' (number) and 'reason' (string).
    * @returns {Array<string>} return.string - index names
-   * 
+   *
    * @example
    * ```
    * const milvusClient = new MilvusClient(MILUVS_ADDRESS);
@@ -208,6 +208,7 @@ export class Index extends Data {
 
   /**
    * Get the index building state.
+   * @deprecated
    *
    * @param {Object} data - An object with the following properties:
    * @param {string} data.collection_name - The name of the collection for which the index state is to be retrieved.
@@ -229,6 +230,7 @@ export class Index extends Data {
    * console.log(res);
    * ```
    */
+  /* istanbul ignore next */
   async getIndexState(data: GetIndexStateReq): Promise<GetIndexStateResponse> {
     checkCollectionName(data);
     const promise = await promisify(
diff --git a/package.json b/package.json
index c63b805d..f66c9f1c 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,8 @@
 {
   "name": "@zilliz/milvus2-sdk-node",
   "author": "ued@zilliz.com",
-  "version": "2.4.4",
-  "milvusVersion": "v2.4.6",
+  "version": "2.4.5",
+  "milvusVersion": "v2.4.8",
   "main": "dist/milvus",
   "files": [
     "dist"
diff --git a/test/grpc/Index.spec.ts b/test/grpc/Index.spec.ts
index 44eb1bce..83e0e593 100644
--- a/test/grpc/Index.spec.ts
+++ b/test/grpc/Index.spec.ts
@@ -354,14 +354,6 @@ describe(`Milvus Index API`, () => {
     expect(res.status.error_code).toEqual(ErrorCode.SUCCESS);
   });
 
-  it(`Get Index State with field name `, async () => {
-    const res = await milvusClient.getIndexState({
-      collection_name: COLLECTION_NAME,
-      field_name: VECTOR_FIELD_NAME,
-    });
-    expect(res.status.error_code).toEqual(ErrorCode.SUCCESS);
-  });
-
   it(`Get Index progress with index name`, async () => {
     const res = await milvusClient.getIndexBuildProgress({
       collection_name: COLLECTION_NAME,
@@ -386,7 +378,7 @@ describe(`Milvus Index API`, () => {
     });
     expect(alter.error_code).toEqual(ErrorCode.SUCCESS);
     const params = describe.index_descriptions[0].params;
-    expect(findKeyValue(params, 'mmap.enabled')).toEqual("true");
+    expect(findKeyValue(params, 'mmap.enabled')).toEqual('true');
 
     // console.log('describe', describe.index_descriptions[0].params);
   });
diff --git a/test/grpc/PartitionKey.spec.ts b/test/grpc/PartitionKey.spec.ts
index f08fe5cd..aa4f53cd 100644
--- a/test/grpc/PartitionKey.spec.ts
+++ b/test/grpc/PartitionKey.spec.ts
@@ -196,7 +196,7 @@ describe(`Partition key API`, () => {
       output_fields: ['varChar'],
     });
 
-    expect(res.status.error_code).toEqual(ErrorCode.UnexpectedError);
+    expect(res.status.error_code).toEqual(ErrorCode.IllegalArgument);
   });
 
   it(`Search Collection should be successful`, async () => {