diff --git a/packages/google-cloud-dialogflow/package.json b/packages/google-cloud-dialogflow/package.json
index ca28fe06c59..a2bcff767f1 100644
--- a/packages/google-cloud-dialogflow/package.json
+++ b/packages/google-cloud-dialogflow/package.json
@@ -43,8 +43,7 @@
     "precompile": "gts clean"
   },
   "dependencies": {
-    "google-gax": "^3.0.1",
-    "protobufjs": "^6.8.9"
+    "google-gax": "^3.0.1"
   },
   "devDependencies": {
     "@types/mocha": "^9.0.0",