diff --git a/parlai/mturk/core/legacy_2018/server_legacy/package.json b/parlai/mturk/core/legacy_2018/server_legacy/package.json
index 82e8320bf8b..93b06f5c476 100644
--- a/parlai/mturk/core/legacy_2018/server_legacy/package.json
+++ b/parlai/mturk/core/legacy_2018/server_legacy/package.json
@@ -20,7 +20,7 @@
     "pg": "7.0.2",
     "pg-hstore": "2.3.2",
     "sequelize": ">=5.3.0",
-    "ws": "4.0.0",
+    "ws": "8.17.1",
     "wait-until": "0.0.2",
     "request": "2.82.0"
   }