diff --git a/package.json b/package.json
index 8943fbe..9ff54d9 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,8 @@
     "node": ">=12"
   },
   "dependencies": {
-    "@grpc/grpc-js": "^1.7.0"
+    "@grpc/grpc-js": "^1.7.0",
+    "protobufjs": "7.4.0"
   },
   "devDependencies": {
     "@grpc/proto-loader": "^0.7.0",