diff --git a/package.json b/package.json
index 7d13d36..ab4b3e7 100644
--- a/package.json
+++ b/package.json
@@ -52,6 +52,6 @@
     "fastestsmallesttextencoderdecoder": "^1.0.22",
     "isomorphic-fetch": "^3.0.0",
     "isomorphic-ws": "^5.0.0",
-    "web-streams-polyfill": "^3.2.1"
+    "web-streams-polyfill": "^3.3.3"
   }
 }