diff --git a/package.json b/package.json
index 82db874b..c81d989d 100644
--- a/package.json
+++ b/package.json
@@ -16,10 +16,10 @@
     "async": "^2.5.0",
     "clone": "^2.0.0",
     "eth-sig-util": "^1.3.0",
-    "eth-block-tracker": "^2.2.2",
+    "eth-block-tracker": "^4.0.1",
     "ethereumjs-block": "^1.2.2",
     "ethereumjs-tx": "^1.2.0",
-    "ethereumjs-util": "^5.1.1",
+    "ethereumjs-util": "^6.0.0",
     "ethereumjs-vm": "^2.0.2",
     "fetch-ponyfill": "^4.0.0",
     "json-rpc-error": "^2.0.0",