diff --git a/packages/google-cloud-dialogflow/samples/package.json b/packages/google-cloud-dialogflow/samples/package.json
index 5dad24fba1f..7d24070259a 100644
--- a/packages/google-cloud-dialogflow/samples/package.json
+++ b/packages/google-cloud-dialogflow/samples/package.json
@@ -16,10 +16,11 @@
   },
   "dependencies": {
     "dialogflow": "^0.8.2",
+    "pb-util": "^0.1.0",
     "pump": "^3.0.0",
     "through2": "^3.0.0",
-    "yargs": "^13.0.0",
-    "uuid": "^3.3.2"
+    "uuid": "^3.3.2",
+    "yargs": "^13.0.0"
   },
   "devDependencies": {
     "chai": "^4.2.0",