diff --git a/beacon_chain/eth1/eth1_monitor.nim b/beacon_chain/eth1/eth1_monitor.nim
index de3cf9870..fe941dd6f 100644
--- a/beacon_chain/eth1/eth1_monitor.nim
+++ b/beacon_chain/eth1/eth1_monitor.nim
@@ -245,8 +245,6 @@ func asEth2Digest*(x: BlockHash): Eth2Digest =
 template asBlockHash*(x: Eth2Digest): BlockHash =
   BlockHash(x.data)
 
-const weiInGwei = 1_000_000_000.u256
-
 from ../spec/datatypes/capella import ExecutionPayload, Withdrawal
 
 func asConsensusWithdrawal(w: WithdrawalV1): capella.Withdrawal =
@@ -254,16 +252,14 @@ func asConsensusWithdrawal(w: WithdrawalV1): capella.Withdrawal =
     index: w.index.uint64,
     validator_index: w.validatorIndex.uint64,
     address: ExecutionAddress(data: w.address.distinctBase),
-
-    # TODO spec doesn't mention non-even-multiples, also overflow
-    amount: (w.amount.u256 div weiInGwei).truncate(uint64))
+    amount: w.amount.uint64)
 
 func asEngineWithdrawal(w: capella.Withdrawal): WithdrawalV1 =
   WithdrawalV1(
     index: Quantity(w.index),
     validatorIndex: Quantity(w.validator_index),
     address: Address(w.address.data),
-    amount: w.amount.u256 * weiInGwei)
+    amount: Quantity(w.amount))
 
 func asConsensusExecutionPayload*(rpcExecutionPayload: ExecutionPayloadV1):
     bellatrix.ExecutionPayload =
diff --git a/beacon_chain/spec/helpers.nim b/beacon_chain/spec/helpers.nim
index 232b5174b..4b9e7fe32 100644
--- a/beacon_chain/spec/helpers.nim
+++ b/beacon_chain/spec/helpers.nim
@@ -391,16 +391,13 @@ proc computeTransactionsTrieRoot*(
       doAssert false, "HexaryTrie.put failed: " & $exc.msg
   tr.rootHash()
 
-func gweiToWei*(gwei: Gwei): UInt256 =
-  gwei.u256 * 1_000_000_000.u256
-
 func toExecutionWithdrawal*(
     withdrawal: capella.Withdrawal): ExecutionWithdrawal =
   ExecutionWithdrawal(
     index: withdrawal.index,
     validatorIndex: withdrawal.validator_index,
     address: EthAddress withdrawal.address.data,
-    amount: gweiToWei withdrawal.amount)
+    amount: withdrawal.amount)
 
 # https://eips.ethereum.org/EIPS/eip-4895
 proc computeWithdrawalsTrieRoot*(
diff --git a/vendor/nim-eth b/vendor/nim-eth
index 8f0ae5535..68f4c5382 160000
--- a/vendor/nim-eth
+++ b/vendor/nim-eth
@@ -1 +1 @@
-Subproject commit 8f0ae55353b95f888dce8a32bf810e58f7091b96
+Subproject commit 68f4c53828cec749e398864bcc6b0097c8d66c31
diff --git a/vendor/nim-web3 b/vendor/nim-web3
index 33586798e..b5188b067 160000
--- a/vendor/nim-web3
+++ b/vendor/nim-web3
@@ -1 +1 @@
-Subproject commit 33586798eae94f2c5bc543089b426769809549e1
+Subproject commit b5188b0679aa36ae54ea083bcd68349ef1b344e7