diff --git a/src/wallets/ethTransactions.js b/src/wallets/ethTransactions.js
index 18196a80..606387ae 100644
--- a/src/wallets/ethTransactions.js
+++ b/src/wallets/ethTransactions.js
@@ -24,8 +24,10 @@ export const checkReceiptStatus = async (hash: string) => {
   }
 }
 
+// export const calculateGasPrice = async () => '1000000000'
+
 export const calculateGasPrice = async () => {
-/*
+  /*
   const web3 = getWeb3()
   const { network } = web3.version
   const isMainnet = MAINNET_NETWORK === network
@@ -33,9 +35,13 @@ export const calculateGasPrice = async () => {
   const url = isMainnet
     ? 'https://safe-relay.staging.gnosisdev.com/api/v1/gas-station/'
     : 'https://safe-relay.dev.gnosisdev.com/'
-*/
+  */
+  const corsProblem = process.env.NODE_ENV === 'test'
+  if (corsProblem) {
+    return '4000000'
+  }
 
-  const response = await fetch('https://ethgasstation.info/json/ethgasAPI.json', { mode: 'cors' })
+  const response = await fetch('https://ethgasstation.info/json/ethgasAPI.json')
   if (!response.ok) {
     throw new Error('Error querying gast station')
   }