diff --git a/apps/contributor/package.json b/apps/contributor/package.json
index 534358d..3eb3a9b 100644
--- a/apps/contributor/package.json
+++ b/apps/contributor/package.json
@@ -7,8 +7,6 @@
     "@aragon/cli": "^5.9.6"
   },
   "devDependencies": {
-    "@aragon/test-helpers": "^1.1.0",
-    "eth-ens-namehash": "^2.0.8",
     "eth-gas-reporter": "^0.2.0",
     "ganache-cli": "^6.4.3",
     "solidity-coverage": "^0.5.11"
diff --git a/apps/contributor/test/contributor.js b/apps/contributor/test/contributor.js
index 589c5cb..cd92fc0 100644
--- a/apps/contributor/test/contributor.js
+++ b/apps/contributor/test/contributor.js
@@ -1,4 +1,4 @@
-const namehash = require('eth-ens-namehash').hash;
+const namehash = require('ethers').utils.namehash;
 
 // eslint-disable-next-line no-undef
 const Contributor = artifacts.require("Contributor.sol");