diff --git a/internal/core/thirdparty/knowhere/CMakeLists.txt b/internal/core/thirdparty/knowhere/CMakeLists.txt
index 58ffa8464e..bd92bca5cb 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 c6c757c )
+set( KNOWHERE_VERSION v2.6.3 )
 set( GIT_REPOSITORY  "https://github.com/zilliztech/knowhere.git")
 
 message(STATUS "Knowhere repo: ${GIT_REPOSITORY}")