diff --git a/app/scripts/lib/typed-message-manager.js b/app/scripts/lib/typed-message-manager.js
index 3cf40ee3c..51a92e3d3 100644
--- a/app/scripts/lib/typed-message-manager.js
+++ b/app/scripts/lib/typed-message-manager.js
@@ -2,7 +2,7 @@ import EventEmitter from 'events'
 import assert from 'assert'
 import ObservableStore from 'obs-store'
 import { ethErrors } from 'eth-json-rpc-errors'
-import sigUtil from 'eth-sig-util'
+import * as sigUtil from 'eth-sig-util'
 import { isValidAddress } from 'ethereumjs-util'
 import log from 'loglevel'
 import jsonschema from 'jsonschema'
diff --git a/package.json b/package.json
index f3a317a78..f29f5fee9 100644
--- a/package.json
+++ b/package.json
@@ -108,7 +108,7 @@
     "eth-method-registry": "^1.2.0",
     "eth-phishing-detect": "^1.1.14",
     "eth-query": "^2.1.2",
-    "eth-sig-util": "^2.3.0",
+    "eth-sig-util": "^3.0.0",
     "eth-trezor-keyring": "^0.4.0",
     "ethereum-ens-network-map": "^1.0.2",
     "ethereumjs-abi": "^0.6.4",
diff --git a/yarn.lock b/yarn.lock
index cf257769c..f61195d90 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10757,6 +10757,18 @@ eth-sig-util@^2.3.0, eth-sig-util@^2.4.4, eth-sig-util@^2.5.0:
     tweetnacl "^1.0.0"
     tweetnacl-util "^0.15.0"
 
+eth-sig-util@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/eth-sig-util/-/eth-sig-util-3.0.0.tgz#75133b3d7c20a5731af0690c385e184ab942b97e"
+  integrity sha512-4eFkMOhpGbTxBQ3AMzVf0haUX2uTur7DpWiHzWyTURa28BVJJtOkcb9Ok5TV0YvEPG61DODPW7ZUATbJTslioQ==
+  dependencies:
+    buffer "^5.2.1"
+    elliptic "^6.4.0"
+    ethereumjs-abi "0.6.5"
+    ethereumjs-util "^5.1.1"
+    tweetnacl "^1.0.0"
+    tweetnacl-util "^0.15.0"
+
 eth-simple-keyring@^3.5.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/eth-simple-keyring/-/eth-simple-keyring-3.5.0.tgz#c7fa285ca58d31ef44bc7db678b689f9ffd7b453"