diff --git a/milvus/const/error.ts b/milvus/const/error.ts
index e8a95fc7..a33eedbf 100644
--- a/milvus/const/error.ts
+++ b/milvus/const/error.ts
@@ -70,4 +70,5 @@ export enum ErrorCode {
   UpsertAutoIDTrue = 'UpsertAutoIDTrue',
   CollectionNotExists = 'CollectionNotExists',
   IllegalArgument = 'IllegalArgument',
+  RateLimit = 'RateLimit',
 }
diff --git a/milvus/http/Vector.ts b/milvus/http/Vector.ts
index 1de986f7..8b8d394c 100644
--- a/milvus/http/Vector.ts
+++ b/milvus/http/Vector.ts
@@ -12,6 +12,7 @@ import {
   HttpBaseResponse,
   FetchOptions,
   HttpVectorUpsertResponse,
+  HttpVectorHybridSearchReq,
 } from '../types';
 
 /**
@@ -79,6 +80,14 @@ export function Vector<T extends Constructor<HttpBaseClient>>(Base: T) {
       return await this.POST<HttpVectorSearchResponse>(url, data, options);
     }
 
+    async hybridSearch(
+      data: HttpVectorHybridSearchReq,
+      options?: FetchOptions
+    ) {
+      const url = `${this.vectorPrefix}/hybrid_search`;
+      return await this.POST<HttpVectorSearchResponse>(url, data, options);
+    }
+
     // POST delete collection
     async delete(
       data: HttpVectorDeleteReq,
diff --git a/milvus/types/Http.ts b/milvus/types/Http.ts
index f5037d11..74ed40b5 100644
--- a/milvus/types/Http.ts
+++ b/milvus/types/Http.ts
@@ -211,6 +211,27 @@ export interface HttpVectorSearchReq extends HttpVectorQueryReq {
   searchParams?: Record<string, any>;
 }
 
+// hybrid search request
+interface HttpVectorHybridSearchParams {
+  data: FloatVector[];
+  limit: number;
+  filter?: string;
+  outputFields?: string[];
+  offset?: number;
+  annsField?: string;
+  ignoreGrowing?: boolean;
+  metricType?: string;
+  params?: Record<string, string | number>;
+}
+
+export interface HttpVectorHybridSearchReq extends HttpBaseReq {
+  search: HttpVectorHybridSearchParams[];
+  rerank: Record<string, any>;
+  partitionNames?: string[];
+  outputFields?: string[];
+  limit?: number;
+}
+
 export interface HttpVectorSearchResponse extends HttpVectorQueryResponse {
   data: QueryResult & { distance: number | string };
 }
diff --git a/package.json b/package.json
index f27542e7..c63b805d 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "@zilliz/milvus2-sdk-node",
   "author": "ued@zilliz.com",
   "version": "2.4.4",
-  "milvusVersion": "v2.4.4",
+  "milvusVersion": "v2.4.6",
   "main": "dist/milvus",
   "files": [
     "dist"
diff --git a/test/grpc/Data.spec.ts b/test/grpc/Data.spec.ts
index 701d6919..ef264cf7 100644
--- a/test/grpc/Data.spec.ts
+++ b/test/grpc/Data.spec.ts
@@ -144,7 +144,11 @@ describe(`Data.API`, () => {
     const res = await milvusClient.flush({
       collection_names: [COLLECTION_NAME],
     });
-    const segIDs = res.coll_segIDs[COLLECTION_NAME].data;
+    if (res.status.error_code === ErrorCode.RateLimit) {
+      expect(res.coll_segIDs[COLLECTION_NAME]).toBeUndefined();
+      return;
+    }
+    const segIDs = res.coll_segIDs[COLLECTION_NAME]?.data;
     await milvusClient.getFlushState({
       segmentIDs: segIDs,
     });
diff --git a/test/http/test.ts b/test/http/test.ts
index 5661cdd9..9bca26b1 100644
--- a/test/http/test.ts
+++ b/test/http/test.ts
@@ -197,6 +197,30 @@ export function generateTests(
       expect(upsert.data.upsertIds).toEqual([target.id]);
     });
 
+    it('should hybrid search data successfully', async () => {
+      const search = await client.hybridSearch({
+        collectionName: createParams.collectionName,
+        outputFields: ['*'],
+        rerank: {
+          strategy: 'rrf',
+          params: {
+            k: 5,
+          },
+        },
+        search: [
+          {
+            data: [[1, 2, 3, 4]],
+            outputFields: ['*'],
+            limit: 5,
+          },
+        ],
+      });
+
+      expect(search.code).toEqual(0);
+      expect(search.data.length).toEqual(5);
+      expect(typeof search.data[0].distance).toEqual('number');
+    });
+
     it('should query data and get data and delete successfully', async () => {
       const query = await client.query({
         collectionName: createParams.collectionName,