diff --git a/cpp/cmake/ThirdPartyPackages.cmake b/cpp/cmake/ThirdPartyPackages.cmake
index b90a0665d8666647a0702ea99682b5363211b31e..61e393af7a0987719a648e92ba08b3a1b68cfd33 100644
--- a/cpp/cmake/ThirdPartyPackages.cmake
+++ b/cpp/cmake/ThirdPartyPackages.cmake
@@ -460,6 +460,7 @@ else()
     set(GRPC_SOURCE_URL
             "http://git.zilliz.tech/kun.yu/grpc/-/archive/master/grpc-master.tar.gz")
 endif()
+set(GRPC_MD5 "7ec59ad54c85a12dcbbfede09bf413a9")
 
 # ----------------------------------------------------------------------
 # ARROW