diff --git a/balancer-js/package.json b/balancer-js/package.json
index 1ea767d7b..d01b9efcb 100644
--- a/balancer-js/package.json
+++ b/balancer-js/package.json
@@ -69,7 +69,6 @@
     "eslint": "^7.9.0",
     "eslint-plugin-mocha-no-only": "^1.1.1",
     "eslint-plugin-prettier": "^3.1.4",
-    "ethers": "^5.0.0",
     "fishery": "^2.2.2",
     "hardhat": "^2.9.3",
     "mocha": "^8.2.1",
@@ -98,6 +97,7 @@
     "@ethersproject/contracts": "^5.4.0",
     "@ethersproject/providers": "^5.4.5",
     "axios": "^0.24.0",
+    "ethers": "^5",
     "graphql": "^15.6.1",
     "graphql-request": "^3.5.0",
     "json-to-graphql-query": "^2.2.4",
diff --git a/balancer-js/src/modules/liquidity-managment/migrations.integrations.spec.ts b/balancer-js/src/modules/liquidity-managment/migrations.integrations.spec.ts
index 2bfbd5bf0..48d41dace 100644
--- a/balancer-js/src/modules/liquidity-managment/migrations.integrations.spec.ts
+++ b/balancer-js/src/modules/liquidity-managment/migrations.integrations.spec.ts
@@ -30,8 +30,8 @@ const migrations = (network: 1 | 137) => {
   };
 
   const remoteRpcUrls = {
-    [Network.MAINNET]: 'https://rpc.ankr.com/eth',
-    [Network.POLYGON]: 'https://rpc.ankr.com/polygon',
+    [Network.MAINNET]: process.env.ALCHEMY_URL,
+    [Network.POLYGON]: process.env.ALCHEMY_URL_POLYGON,
   };
 
   const blockNumbers = {
diff --git a/balancer-js/yarn.lock b/balancer-js/yarn.lock
index 1c1ba2400..d74837247 100644
--- a/balancer-js/yarn.lock
+++ b/balancer-js/yarn.lock
@@ -3482,7 +3482,7 @@ ethereumjs-util@^7.1.4:
     ethereum-cryptography "^0.1.3"
     rlp "^2.2.4"
 
-ethers@^5.0.0:
+ethers@^5:
   version "5.7.2"
   resolved "https://registry.yarnpkg.com/ethers/-/ethers-5.7.2.tgz#3a7deeabbb8c030d4126b24f84e525466145872e"
   integrity sha512-wswUsmWo1aOK8rR7DIKiWSw9DbLWe6x98Jrn8wcTflTVvaXhAMaB5zGAXy0GYQEQp9iO1iSHWVyARQm11zUtyg==