diff --git a/packages/grpc-native-core/binding.gyp b/packages/grpc-native-core/binding.gyp
index e3849974..347a55b8 100644
--- a/packages/grpc-native-core/binding.gyp
+++ b/packages/grpc-native-core/binding.gyp
@@ -91,7 +91,7 @@
       'GPR_BACKWARDS_COMPATIBILITY_MODE',
       'GRPC_ARES=0',
       'GRPC_UV',
-      'GRPC_NODE_VERSION="1.21.0-dev"'
+      'GRPC_NODE_VERSION="1.20.0-pre1"'
     ],
     'conditions': [
       ['grpc_gcov=="true"', {
diff --git a/packages/grpc-native-core/deps/grpc b/packages/grpc-native-core/deps/grpc
index cb012970..2f113fd0 160000
--- a/packages/grpc-native-core/deps/grpc
+++ b/packages/grpc-native-core/deps/grpc
@@ -1 +1 @@
-Subproject commit cb012970215b8c5141f4fdfdbe850006bd7994d6
+Subproject commit 2f113fd0fc8570ba5ba723b40638eab711cca6e2
diff --git a/packages/grpc-native-core/package.json b/packages/grpc-native-core/package.json
index f849dde2..a6572664 100644
--- a/packages/grpc-native-core/package.json
+++ b/packages/grpc-native-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grpc",
-  "version": "1.21.0-dev",
+  "version": "1.20.0-pre1",
   "author": "Google Inc.",
   "description": "gRPC Library for Node",
   "homepage": "https://grpc.io/",