diff --git a/package-lock.json b/package-lock.json
index 4cd42ca20..85945de1c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -320,6 +320,53 @@
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@@ -382,11 +429,12 @@
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@@ -422,99 +470,1239 @@
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+            "underscore": "1.9.1",
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@@ -3319,12 +4507,51 @@
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+        }
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       "integrity": "sha1-L9w1dvIykDNYl26znaeDIT/5Uj8=",
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     },
+    "ethereum-ens": {
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+      "resolved": "https://registry.npmjs.org/ethereum-ens/-/ethereum-ens-0.7.8.tgz",
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+      "requires": {
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+        "eth-ens-namehash": "^2.0.0",
+        "js-sha3": "^0.5.7",
+        "pako": "^1.0.4",
+        "underscore": "^1.8.3",
+        "web3": "^1.0.0-beta.34"
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+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
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+    },
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       "resolved": "https://registry.npmjs.org/ethereumjs-abi/-/ethereumjs-abi-0.6.5.tgz",
@@ -3459,9 +4686,9 @@
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-      "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.38.tgz",
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+      "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.39.tgz",
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@@ -3477,9 +4704,9 @@
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+          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.17.5.tgz",
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         },
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@@ -7800,6 +9027,12 @@
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       }
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+      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.10.tgz",
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@@ -8763,6 +9996,23 @@
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       "dev": true
     },
+    "scrypt-shim": {
+      "version": "github:web3-js/scrypt-shim#be5e616323a8b5e568788bf94d03c1b8410eac54",
+      "from": "github:web3-js/scrypt-shim",
+      "dev": true,
+      "requires": {
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+        "semver": "^6.3.0"
+      },
+      "dependencies": {
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+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
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+        }
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     "scrypt.js": {
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       "resolved": "https://registry.npmjs.org/scrypt.js/-/scrypt.js-0.3.0.tgz",
@@ -10613,6 +11863,12 @@
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+      "resolved": "https://registry.npmjs.org/try-require/-/try-require-1.2.1.tgz",
+      "integrity": "sha1-NEiaLKwMCcHMEO2RugEVlNQzO+I=",
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     "tslib": {
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diff --git a/package.json b/package.json
index 9499ae5b0..282fb3295 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
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     "@openzeppelin/gsn-provider": "^0.1.9",
-    "@openzeppelin/test-helpers": "^0.5.3",
+    "@openzeppelin/test-helpers": "^0.5.4",
     "chai": "^4.2.0",
     "concurrently": "^5.0.0",
     "eslint": "^6.5.1",