diff --git a/package.json b/package.json
index 017e93b..61d3340 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "@bufbuild/protobuf": "^2.12.0",
-    "google-protobuf": "^3.21.0"
+    "google-protobuf": "^4.0.0"
   },
   "devDependencies": {
     "@types/node": "^25.6.0",