diff --git a/net/grpc/gateway/runtime/runtime.cc b/net/grpc/gateway/runtime/runtime.cc
index 2a42203..0ef8c4a 100644
--- a/net/grpc/gateway/runtime/runtime.cc
+++ b/net/grpc/gateway/runtime/runtime.cc
@@ -386,7 +386,7 @@ grpc_channel* Runtime::GetBackendChannel(
         (pem_private_key.empty() || pem_cert_chain.empty())
             ? nullptr
             : &pem_key_cert_pair,
-        nullptr);
+        nullptr, nullptr);
     channel = grpc_secure_channel_create(creds, backend_address.c_str(),
                                          &channel_args, nullptr);
     grpc_channel_credentials_release(creds);
diff --git a/scripts/init_submodules.sh b/scripts/init_submodules.sh
index d35252c..5120538 100755
--- a/scripts/init_submodules.sh
+++ b/scripts/init_submodules.sh
@@ -18,4 +18,4 @@ cd "$(dirname "$0")"/..
 git submodule update --init
 cd third_party/closure-library && git checkout tags/v20171112 -f && cd ../..
 cd third_party/openssl && git checkout tags/OpenSSL_1_0_2h -f && cd ../..
-cd third_party/grpc && git checkout ac0188e -f && git submodule update --init && cd ../..
+cd third_party/grpc && git checkout d8772cf -f && git submodule update --init && cd ../..
diff --git a/third_party/grpc b/third_party/grpc
index ac0188e..d8772cf 160000
--- a/third_party/grpc
+++ b/third_party/grpc
@@ -1 +1 @@
-Subproject commit ac0188e25b46a191e278610e264edb1df1287c94
+Subproject commit d8772cf88f3a910160349eb21950dcd9619d1b6a