diff --git a/package.json b/package.json
index 650b98e..dfeb66d 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "ava": "^0.25.0",
     "google-protobuf": "^3.5.0",
     "greenkeeper-lockfile": "^1.13.0",
-    "grpc": "^1.8.0",
+    "grpc": "^1.9.0",
     "highland": "^3.0.0-beta.3",
     "jsdoc-to-markdown": "^4.0.1",
     "md-wrap-code": "^0.1.1",