diff --git a/src/utils/bzz-abi.ts b/src/utils/bzz-abi.ts
index 4f6c5ce1..5025b761 100644
--- a/src/utils/bzz-abi.ts
+++ b/src/utils/bzz-abi.ts
@@ -1,4 +1,5 @@
-export const BZZ_TOKEN_ADDRESS = '0xdBF3Ea6F5beE45c02255B2c26a16F300502F68da'
+export const BZZ_TOKEN_ADDRESS = '0x2ac3c1d3e24b45c6c310534bc2dd84b5ed576335'
+
 export const bzzABI = [
   {
     type: 'function',
diff --git a/src/utils/rpc.ts b/src/utils/rpc.ts
index d69e55b6..1c078b9c 100644
--- a/src/utils/rpc.ts
+++ b/src/utils/rpc.ts
@@ -1,8 +1,8 @@
 import { debounce } from '@material-ui/core'
-import { Contract, providers, Wallet, BigNumber as BN } from 'ethers'
+import { BigNumber as BN, Contract, providers, Wallet } from 'ethers'
 import { bzzABI, BZZ_TOKEN_ADDRESS } from './bzz-abi'
 
-const NETWORK_ID = 100
+const NETWORK_ID = 5
 
 async function getNetworkChainId(url: string): Promise<number> {
   const provider = new providers.JsonRpcProvider(url, NETWORK_ID)
diff --git a/src/utils/wallet.ts b/src/utils/wallet.ts
index b1a487c2..3d8cf783 100644
--- a/src/utils/wallet.ts
+++ b/src/utils/wallet.ts
@@ -69,7 +69,7 @@ export class ResolvedWallet {
       await Rpc.sendNativeTransaction(
         this.privateKey,
         destination,
-        this.dai.toBigNumber.minus(totalCost.toString()).toString(),
+        '0x' + this.dai.toBigNumber.minus(totalCost.toString()).toString(16),
         jsonRpcProvider,
         gasPrice,
       )