diff --git a/beacon_chain/el/deposit_contract.nim b/beacon_chain/el/deposit_contract.nim
index 42c739bab..445a3c579 100644
--- a/beacon_chain/el/deposit_contract.nim
+++ b/beacon_chain/el/deposit_contract.nim
@@ -122,9 +122,9 @@ contract(DepositContract):
                deposit_data_root: FixedBytes[32])
 
 proc deployContract*(web3: Web3, code: seq[byte]): Future[ReceiptObject] {.async.} =
-  let tr = EthSend(
-    `from`: web3.defaultAccount,
-    data: code,
+  let tr = TransactionArgs(
+    `from`: web3.defaultAccount.some,
+    data: code.some,
     gas: Quantity(3000000).some,
     gasPrice: Quantity(1).some)
 
@@ -132,8 +132,12 @@ proc deployContract*(web3: Web3, code: seq[byte]): Future[ReceiptObject] {.async
   result = await web3.getMinedTransactionReceipt(r)
 
 proc sendEth(web3: Web3, to: Eth1Address, valueEth: int): Future[TxHash] =
-  let tr = EthSend(
-    `from`: web3.defaultAccount,
+  let tr = TransactionArgs(
+    `from`: web3.defaultAccount.some,
+    # TODO: Force json-rpc to generate 'data' field
+    # should not be needed anymore, new execution-api schema
+    # is using `input` field
+    data: some(newSeq[byte]()), 
     gas: Quantity(3000000).some,
     gasPrice: Quantity(1).some,
     value: some(valueEth.u256 * 1000000000000000000.u256),
diff --git a/ncli/ncli_testnet.nim b/ncli/ncli_testnet.nim
index 9f61a8412..8e3017e8b 100644
--- a/ncli/ncli_testnet.nim
+++ b/ncli/ncli_testnet.nim
@@ -504,9 +504,9 @@ proc doCreateTestnet*(config: CliConfig,
     echo "Wrote ", bootstrapFile
 
 proc deployContract(web3: Web3, code: seq[byte]): Future[ReceiptObject] {.async.} =
-  let tr = EthSend(
-    `from`: web3.defaultAccount,
-    data: code,
+  let tr = TransactionArgs(
+    `from`: web3.defaultAccount.some,
+    data: code.some,
     gas: Quantity(3000000).some,
     gasPrice: Quantity(1).some)
 
@@ -514,8 +514,12 @@ proc deployContract(web3: Web3, code: seq[byte]): Future[ReceiptObject] {.async.
   result = await web3.getMinedTransactionReceipt(r)
 
 proc sendEth(web3: Web3, to: Eth1Address, valueEth: int): Future[TxHash] =
-  let tr = EthSend(
-    `from`: web3.defaultAccount,
+  let tr = TransactionArgs(
+    `from`: web3.defaultAccount.some,
+    # TODO: Force json-rpc to generate 'data' field
+    # should not be needed anymore, new execution-api schema
+    # is using `input` field
+    data: some(newSeq[byte]()),
     gas: Quantity(3000000).some,
     gasPrice: Quantity(1).some,
     value: some(valueEth.u256 * 1000000000000000000.u256),
diff --git a/vendor/nim-web3 b/vendor/nim-web3
index 80c7aa6de..285d97c2b 160000
--- a/vendor/nim-web3
+++ b/vendor/nim-web3
@@ -1 +1 @@
-Subproject commit 80c7aa6de2a26c57fa1f06ad47f3ac6058e6545b
+Subproject commit 285d97c2b05bbe2a13dab4b52ea878157fb1a1a1