diff --git a/package.json b/package.json
index 401c797..e1d827b 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
   "license": "MIT",
   "main": "index.js",
   "optionalDependencies": {
-    "bufferutil": "^4.0.1",
+    "bufferutil": "^4.0.3",
     "utf-8-validate": "^5.0.2"
   },
   "repository": {