diff --git a/packages/grpc-tools/package.json b/packages/grpc-tools/package.json
index 67f6af4d..7dddbff0 100644
--- a/packages/grpc-tools/package.json
+++ b/packages/grpc-tools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grpc-tools",
-  "version": "1.9.0",
+  "version": "1.9.1",
   "author": "Google Inc.",
   "description": "Tools for developing with gRPC on Node.js",
   "homepage": "https://grpc.io/",