diff --git a/bots/js/package.json b/bots/js/package.json
index 247d889e7..564c06568 100644
--- a/bots/js/package.json
+++ b/bots/js/package.json
@@ -2,7 +2,7 @@
   "dependencies": {
     "bignumber.js": "4.0.1",
     "ethereumjs-tx": "1.3.3",
-    "ethereumjs-util": "4.5.0",
+    "ethereumjs-util": "4.5.1",
     "js-sha256": "0.3.0",
     "socket.io-client": "2.0.3",
     "web3": "0.17.0-alpha"