diff --git a/packages/grpc-native-core/build.yaml b/packages/grpc-native-core/build.yaml
index 3577ac83..addd757b 100644
--- a/packages/grpc-native-core/build.yaml
+++ b/packages/grpc-native-core/build.yaml
@@ -1,3 +1,3 @@
 settings:
   '#': It's possible to have node_version here as a key to override the core's version.
-  node_version: 1.12.2
+  node_version: 1.12.3
diff --git a/packages/grpc-native-core/package.json b/packages/grpc-native-core/package.json
index e203fb71..d57db163 100644
--- a/packages/grpc-native-core/package.json
+++ b/packages/grpc-native-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grpc",
-  "version": "1.12.2",
+  "version": "1.12.3",
   "author": "Google Inc.",
   "description": "gRPC Library for Node",
   "homepage": "https://grpc.io/",