diff --git a/parlai/mturk/core/dev/react_server/server/package.json b/parlai/mturk/core/dev/react_server/server/package.json
index b5d5d865bc9..11683db8ed9 100644
--- a/parlai/mturk/core/dev/react_server/server/package.json
+++ b/parlai/mturk/core/dev/react_server/server/package.json
@@ -13,7 +13,7 @@
     "node": ">= 7.6.0"
   },
   "dependencies": {
-    "async-lock": "1.0.0",
+    "async-lock": "1.4.0",
     "body-parser": "1.17.2",
     "esm": "^3.2.25",
     "express": "4.15.3",