diff --git a/internal/core/thirdparty/knowhere/CMakeLists.txt b/internal/core/thirdparty/knowhere/CMakeLists.txt
index 3b1bb17836..27b1914631 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 v2.5.0 )
+set( KNOWHERE_VERSION 4caec1de )
 set( GIT_REPOSITORY  "https://github.com/zilliztech/knowhere.git")
 message(STATUS "Knowhere repo: ${GIT_REPOSITORY}")
 message(STATUS "Knowhere version: ${KNOWHERE_VERSION}")