diff --git a/internal/core/thirdparty/knowhere/CMakeLists.txt b/internal/core/thirdparty/knowhere/CMakeLists.txt
index 33d4530123..ca6a71dcc7 100644
--- a/internal/core/thirdparty/knowhere/CMakeLists.txt
+++ b/internal/core/thirdparty/knowhere/CMakeLists.txt
@@ -14,7 +14,7 @@
 # Update KNOWHERE_VERSION for the first occurrence
 milvus_add_pkg_config("knowhere")
 set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY INCLUDE_DIRECTORIES "")
-set( KNOWHERE_VERSION v2.6.1 )
+set( KNOWHERE_VERSION v2.6.2 )
 set( GIT_REPOSITORY  "https://github.com/zilliztech/knowhere.git")
 
 message(STATUS "Knowhere repo: ${GIT_REPOSITORY}")
diff --git a/internal/core/thirdparty/milvus-common/CMakeLists.txt b/internal/core/thirdparty/milvus-common/CMakeLists.txt
index 1410da7d0a..0ba131f1b3 100644
--- a/internal/core/thirdparty/milvus-common/CMakeLists.txt
+++ b/internal/core/thirdparty/milvus-common/CMakeLists.txt
@@ -13,7 +13,7 @@
 
 milvus_add_pkg_config("milvus-common")
 set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY INCLUDE_DIRECTORIES "")
-set( MILVUS-COMMON-VERSION 7309380 )
+set( MILVUS-COMMON-VERSION 2008bac )
 set( GIT_REPOSITORY "https://github.com/zilliztech/milvus-common.git")
 
 message(STATUS "milvus-common repo: ${GIT_REPOSITORY}")
diff --git a/internal/core/unittest/test_sealed.cpp b/internal/core/unittest/test_sealed.cpp
index 3585c07371..fe0a3da83a 100644
--- a/internal/core/unittest/test_sealed.cpp
+++ b/internal/core/unittest/test_sealed.cpp
@@ -2453,7 +2453,7 @@ TEST(Sealed, SearchVectorArray) {
     auto search_conf = knowhere::Json{{knowhere::indexparam::NPROBE, 10}};
     milvus::SearchInfo searchInfo;
     searchInfo.topk_ = 5;
-    searchInfo.metric_type_ = knowhere::metric::L2;
+    searchInfo.metric_type_ = knowhere::metric::MAX_SIM;
     searchInfo.search_params_ = search_conf;
     SearchResult result;
     vec_index->Query(query_dataset, searchInfo, nullptr, result);
diff --git a/internal/core/unittest/test_vector_array_storage_v2.cpp b/internal/core/unittest/test_vector_array_storage_v2.cpp
index 794b4e43d0..c6450b1820 100644
--- a/internal/core/unittest/test_vector_array_storage_v2.cpp
+++ b/internal/core/unittest/test_vector_array_storage_v2.cpp
@@ -275,7 +275,7 @@ TEST_F(TestVectorArrayStorageV2, BuildEmbListHNSWIndex) {
     // Create index using storage v2 config
     milvus::index::CreateIndexInfo create_index_info;
     create_index_info.field_type = DataType::VECTOR_ARRAY;
-    create_index_info.metric_type = knowhere::metric::L2;
+    create_index_info.metric_type = knowhere::metric::MAX_SIM;
     create_index_info.index_type = knowhere::IndexEnum::INDEX_EMB_LIST_HNSW;
     create_index_info.index_engine_version =
         knowhere::Version::GetCurrentVersion().VersionNumber();
@@ -326,7 +326,7 @@ TEST_F(TestVectorArrayStorageV2, BuildEmbListHNSWIndex) {
         auto search_conf = knowhere::Json{{knowhere::indexparam::NPROBE, 10}};
         milvus::SearchInfo searchInfo;
         searchInfo.topk_ = 5;
-        searchInfo.metric_type_ = knowhere::metric::L2;
+        searchInfo.metric_type_ = knowhere::metric::MAX_SIM;
         searchInfo.search_params_ = search_conf;
         SearchResult result;
         vec_index->Query(query_dataset, searchInfo, nullptr, result);