diff --git a/@types/frame/rpc.d.ts b/@types/frame/rpc.d.ts
index 7c24e76ec..6f7b61bb2 100644
--- a/@types/frame/rpc.d.ts
+++ b/@types/frame/rpc.d.ts
@@ -7,6 +7,7 @@ type RPCRequestCallback = RPCCallback<RPCResponsePayload>
 
 type Address = string // 20 hex bytes, 0x-prefixed
 type Caip2ChainId = string // format: "<namespace>:<chainId>", ex: "eip155:1"
+type TransactionType = '0x0' | '0x1' | '0x2' | '0x4'
 
 interface RPCId {
   id: number
@@ -151,6 +152,12 @@ declare namespace RPC {
   }
 
   namespace SendTransaction {
+    interface Authorization {
+      contractAddress: Address
+      chainId: string
+      nonce: string
+    }
+
     interface TxParams {
       nonce?: string
       gasPrice?: string
@@ -163,7 +170,8 @@ declare namespace RPC {
       data?: string
       value?: string
       chainId: string
-      type?: string
+      type?: TransactionType
+      authorizationList?: Authorization[]
     }
 
     interface Request extends Omit<RPCRequestPayload, 'method'> {
diff --git a/app/tray/Account/Requests/TransactionRequest/ViewData/index.js b/app/tray/Account/Requests/TransactionRequest/ViewData/index.js
index 7850faf28..eef151336 100644
--- a/app/tray/Account/Requests/TransactionRequest/ViewData/index.js
+++ b/app/tray/Account/Requests/TransactionRequest/ViewData/index.js
@@ -136,7 +136,10 @@ class ViewData extends React.Component {
   decodeRawTx(tx) {
     const decodeTx = {}
     Object.keys(tx).forEach((key) => {
-      if (tx[key] && !tx[key].startsWith('0x')) {
+      console.log('key: ', key)
+      if (key === 'authorizationList') {
+        decodeTx[key] = tx[key].toString()
+      } else if (tx[key] && !tx[key].startsWith('0x')) {
         decodeTx[key] = tx[key]
       } else if (
         [
diff --git a/main/accounts/index.ts b/main/accounts/index.ts
index 91dfd6ad3..69c97a66f 100644
--- a/main/accounts/index.ts
+++ b/main/accounts/index.ts
@@ -7,34 +7,38 @@ import { v5 as uuidv5 } from 'uuid'
 import provider from '../provider'
 import store from '../store'
 import FrameAccount from './Account'
-import ExternalDataScanner, { DataScanner } from '../externalData'
+import ExternalDataScanner from '../externalData'
 import Signer from '../signers/Signer'
-import { signerCompatibility as transactionCompatibility, maxFee, SignerCompatibility } from '../transaction'
+import { signerCompatibility as transactionCompatibility, maxFee } from '../transaction'
 
 import { weiIntToEthInt, hexToInt } from '../../resources/utils'
 import { accountPanelCrumb, signerPanelCrumb } from '../../resources/domain/nav'
 import { usesBaseFee, TransactionData, GasFeesSource } from '../../resources/domain/transaction'
 import { findUnavailableSigners, isSignerReady } from '../../resources/domain/signer'
 
-import {
+import { ReplacementType, RequestStatus, RequestMode } from './types'
+
+import { openBlockExplorer } from '../windows/window'
+import { ApprovalType } from '../../resources/constants'
+import { accountNS } from '../../resources/domain/account'
+import { chainUsesOptimismFees } from '../../resources/utils/chains'
+
+import type { PrefixedHexString } from '@ethereumjs/util'
+
+import type { Chain } from '../chains'
+import type { SignerCompatibility } from '../transaction'
+import type { ActionType } from '../transaction/actions'
+import type { DataScanner } from '../externalData'
+
+import type {
   AccountRequest,
   AccessRequest,
   TransactionRequest,
   TransactionReceipt,
-  ReplacementType,
-  RequestStatus,
-  RequestMode,
   TypedMessage,
   PermitSignatureRequest
 } from './types'
 
-import type { Chain } from '../chains'
-import { ActionType } from '../transaction/actions'
-import { openBlockExplorer } from '../windows/window'
-import { ApprovalType } from '../../resources/constants'
-import { accountNS } from '../../resources/domain/account'
-import { chainUsesOptimismFees } from '../../resources/utils/chains'
-
 function notify(title: string, body: string, action: (event: Electron.Event) => void) {
   const notification = new Notification({ title, body })
   notification.on('click', action)
@@ -158,7 +162,7 @@ export class Accounts extends EventEmitter {
     return this._current ? this.accounts[this._current] : null
   }
 
-  updateNonce(reqId: string, nonce: string) {
+  updateNonce(reqId: string, nonce: PrefixedHexString) {
     log.info('Update Nonce: ', reqId, nonce)
 
     const currentAccount = this.current()
@@ -1215,7 +1219,7 @@ export class Accounts extends EventEmitter {
     const txRequest = this.getTransactionRequest(currentAccount, handlerId)
     const initialNonce = txRequest.payload.params[0].nonce
     if (initialNonce) {
-      txRequest.data.nonce = initialNonce
+      txRequest.data.nonce = initialNonce as PrefixedHexString
     } else {
       delete txRequest.data.nonce
     }
diff --git a/main/contracts/erc20.ts b/main/contracts/erc20.ts
index eb80af83d..712933083 100644
--- a/main/contracts/erc20.ts
+++ b/main/contracts/erc20.ts
@@ -1,11 +1,13 @@
+import provider from '../provider'
 import { TransactionDescription } from '@ethersproject/abi'
 import { Contract } from '@ethersproject/contracts'
 import { Web3Provider } from '@ethersproject/providers'
 import { addHexPrefix } from '@ethereumjs/util'
-import provider from '../provider'
 import { BigNumber } from 'ethers'
 import { erc20Interface } from '../../resources/contracts'
 
+import type { PrefixedHexString } from '@ethereumjs/util'
+
 export interface TokenData {
   decimals?: number
   name: string
@@ -75,7 +77,7 @@ export default class Erc20Contract {
   }
 
   static encodeCallData(fn: string, params: any[]) {
-    return erc20Interface.encodeFunctionData(fn, params)
+    return erc20Interface.encodeFunctionData(fn, params) as PrefixedHexString
   }
 
   async getTokenData(): Promise<TokenData> {
diff --git a/main/provider/helpers.ts b/main/provider/helpers.ts
index e4691d251..6e8606172 100644
--- a/main/provider/helpers.ts
+++ b/main/provider/helpers.ts
@@ -1,13 +1,13 @@
 import {
   padToEven,
-  unpadHexString,
   addHexPrefix,
   stripHexPrefix,
   intToHex,
-  toBuffer,
   pubToAddress,
   ecrecover,
-  hashPersonalMessage
+  hashPersonalMessage,
+  toBytes,
+  unpadHex
 } from '@ethereumjs/util'
 import log from 'electron-log'
 import BN from 'bignumber.js'
@@ -16,10 +16,12 @@ import { isHexString } from 'ethers/lib/utils'
 
 import store from '../store'
 import protectedMethods from '../api/protectedMethods'
-import { usesBaseFee, TransactionData, GasFeesSource } from '../../resources/domain/transaction'
+import { usesBaseFee, GasFeesSource } from '../../resources/domain/transaction'
 import { getAddress } from '../../resources/utils'
 
-import type { Chain, Permission } from '../store/state'
+import type { TransactionData } from '../../resources/domain/transaction'
+import type { Chain } from '../store/state'
+import type { PrefixedHexString } from '@ethereumjs/util'
 
 const permission = (date: number, method: string) => ({ parentCapability: method, date })
 
@@ -53,8 +55,8 @@ export function checkExistingNonceGas(tx: TransactionData) {
         // Bump fees by 10%
         const bumpedFee = Math.max(Math.ceil(existingFee * 1.1), feeInt)
         const bumpedBase = Math.max(Math.ceil((existingMax - existingFee) * 1.1), Math.ceil(maxInt - feeInt))
-        tx.maxFeePerGas = '0x' + (bumpedBase + bumpedFee).toString(16)
-        tx.maxPriorityFeePerGas = '0x' + bumpedFee.toString(16)
+        tx.maxFeePerGas = intToHex(bumpedBase + bumpedFee)
+        tx.maxPriorityFeePerGas = intToHex(bumpedFee)
         tx.gasFeesSource = GasFeesSource.Frame
         tx.feesUpdated = true
       }
@@ -64,7 +66,7 @@ export function checkExistingNonceGas(tx: TransactionData) {
       if (existingPrice >= priceInt) {
         // Bump price by 10%
         const bumpedPrice = Math.ceil(existingPrice * 1.1)
-        tx.gasPrice = '0x' + bumpedPrice.toString(16)
+        tx.gasPrice = intToHex(bumpedPrice)
         tx.gasFeesSource = GasFeesSource.Frame
         tx.feesUpdated = true
       }
@@ -85,7 +87,7 @@ export function feeTotalOverMax(rawTx: TransactionData, maxTotalFee: number) {
 
 function parseValue(value = '') {
   const parsedHex = parseInt(value, 16)
-  return (!!parsedHex && addHexPrefix(unpadHexString(value))) || '0x0'
+  return (!!parsedHex && addHexPrefix(unpadHex(value))) || '0x0'
 }
 
 export function getRawTx(newTx: RPC.SendTransaction.TxParams): TransactionData {
@@ -93,7 +95,7 @@ export function getRawTx(newTx: RPC.SendTransaction.TxParams): TransactionData {
   const getNonce = () => {
     // pass through hex string or undefined
     if (rawTx.nonce === undefined || isHexString(rawTx.nonce)) {
-      return rawTx.nonce
+      return rawTx.nonce as PrefixedHexString
     }
 
     // convert positive integer strings to hex, reject everything else
@@ -106,15 +108,25 @@ export function getRawTx(newTx: RPC.SendTransaction.TxParams): TransactionData {
 
   const tx: TransactionData = {
     ...rawTx,
+    maxPriorityFeePerGas: isHexString(rawTx.maxPriorityFeePerGas)
+      ? (rawTx.maxPriorityFeePerGas as PrefixedHexString)
+      : intToHex(parseInt(rawTx.maxPriorityFeePerGas || '0', 10)),
+    maxFeePerGas: isHexString(rawTx.maxFeePerGas)
+      ? (rawTx.maxFeePerGas as PrefixedHexString)
+      : intToHex(parseInt(rawTx.maxFeePerGas || '0', 10)),
+    gasPrice: isHexString(rawTx.gasPrice)
+      ? (rawTx.gasPrice as PrefixedHexString)
+      : intToHex(parseInt(rawTx.gasPrice || '0', 10)),
     ...(from && { from: getAddress(from) }),
     ...(to && { to: getAddress(to) }),
     type: '0x0',
     value: parseValue(value),
     data: addHexPrefix(padToEven(stripHexPrefix(data || '0x'))),
-    gasLimit: gasLimit || gas,
+    gasLimit: (gasLimit || gas) as PrefixedHexString,
     chainId: rawTx.chainId,
     nonce: getNonce(),
-    gasFeesSource: GasFeesSource.Dapp
+    gasFeesSource: GasFeesSource.Dapp,
+    authorizationList: []
   }
 
   return tx
@@ -139,10 +151,12 @@ export function getSignedAddress(signed: string, message: string, cb: Callback<s
   if (signature.length !== 65) return cb(new Error('Frame verifySignature: Signature has incorrect length'))
   let v = signature[64]
   v = v === 0 || v === 1 ? v + 27 : v
-  const r = toBuffer(signature.slice(0, 32))
-  const s = toBuffer(signature.slice(32, 64))
-  const hash = hashPersonalMessage(toBuffer(message))
-  const verifiedAddress = '0x' + pubToAddress(ecrecover(hash, BigInt(v), r, s)).toString('hex')
+  const r = Uint8Array.prototype.slice.call(signature, 0, 32)
+  const s = Uint8Array.prototype.slice.call(signature, 32, 64)
+  const hash = hashPersonalMessage(toBytes(message))
+  const addressBuffer = Buffer.from(pubToAddress(ecrecover(hash, BigInt(v), r, s)))
+  const verifiedAddress = `0x${addressBuffer.toString('hex')}`
+
   cb(null, verifiedAddress)
 }
 
diff --git a/main/provider/index.ts b/main/provider/index.ts
index 9037f53ed..dd405c5a5 100644
--- a/main/provider/index.ts
+++ b/main/provider/index.ts
@@ -7,7 +7,7 @@ import { BigNumber } from 'ethers'
 import { estimateL1GasCost } from '@eth-optimism/sdk'
 import { recoverTypedSignature, SignTypedDataVersion } from '@metamask/eth-sig-util'
 import { isAddress } from '@ethersproject/address'
-import { addHexPrefix, intToHex, isHexString, isHexPrefixed, fromUtf8 } from '@ethereumjs/util'
+import { addHexPrefix, intToHex, isHexString, fromUtf8, PrefixedHexString } from '@ethereumjs/util'
 
 import store from '../store'
 import packageFile from '../../package.json'
@@ -241,15 +241,7 @@ export class Provider extends EventEmitter {
     const payload = req.payload
     let [address, rawMessage] = payload.params
 
-    let message = rawMessage
-
-    if (isHexString(rawMessage)) {
-      if (!isHexPrefixed(rawMessage)) {
-        message = addHexPrefix(rawMessage)
-      }
-    } else {
-      message = fromUtf8(rawMessage)
-    }
+    const message = isHexString(rawMessage) ? rawMessage : fromUtf8(rawMessage)
 
     accounts.signMessage(address, message, (err, signed) => {
       if (err) {
@@ -427,7 +419,7 @@ export class Provider extends EventEmitter {
     return handlerId
   }
 
-  private async getGasEstimate(rawTx: TransactionData) {
+  private async getGasEstimate(rawTx: TransactionData): Promise<PrefixedHexString> {
     const { from, to, value, data, nonce } = rawTx
     const txParams = { from, to, value, data, nonce }
 
@@ -443,7 +435,7 @@ export class Provider extends EventEmitter {
       id: parseInt(rawTx.chainId, 16)
     }
 
-    return new Promise<string>((resolve, reject) => {
+    return new Promise<PrefixedHexString>((resolve, reject) => {
       this.connection.send(
         payload,
         (response) => {
@@ -496,7 +488,7 @@ export class Provider extends EventEmitter {
       const gas = gasFees(rawTx)
       const { chainConfig } = connection
 
-      const estimateGasLimit = async () => {
+      const estimateGasLimit = async (): Promise<PrefixedHexString> => {
         try {
           return await this.getGasEstimate(rawTx)
         } catch (error) {
diff --git a/main/signers/Signer/derive.ts b/main/signers/Signer/derive.ts
index 22cdddb56..c28c16910 100644
--- a/main/signers/Signer/derive.ts
+++ b/main/signers/Signer/derive.ts
@@ -16,8 +16,8 @@ export function deriveHDAccounts(publicKey: string, chainCode: string, cb: Callb
     hdk.chainCode = Buffer.from(chainCode, 'hex')
     const derive = (index: number) => {
       const derivedKey = hdk.derive(`m/${index}`)
-      const address = publicToAddress(derivedKey.publicKey, true)
-      return toChecksumAddress(`0x${address.toString('hex')}`)
+      const address = Buffer.from(publicToAddress(derivedKey.publicKey, true)).toString('hex')
+      return toChecksumAddress(`0x${address}`)
     }
     const accounts = []
     for (let i = 0; i < 100; i++) {
diff --git a/main/signers/hot/HotSigner/worker.js b/main/signers/hot/HotSigner/worker.js
index 5c4aa8299..f6a183eef 100644
--- a/main/signers/hot/HotSigner/worker.js
+++ b/main/signers/hot/HotSigner/worker.js
@@ -72,7 +72,7 @@ class HotSignerWorker {
     }
 
     const chainId = parseInt(rawTx.chainId, 16)
-    const hardfork = parseInt(rawTx.type) === 2 ? 'london' : 'berlin'
+    const hardfork = parseInt(rawTx.type) === 2 ? 'london' : parseInt(rawTx.type) === 4 ? 'pectra' : 'london'
     const common = chainConfig(chainId, hardfork)
 
     const tx = TransactionFactory.fromTxData(rawTx, { common })
diff --git a/main/signers/lattice/Lattice/index.ts b/main/signers/lattice/Lattice/index.ts
index ad821353e..a1dc04813 100644
--- a/main/signers/lattice/Lattice/index.ts
+++ b/main/signers/lattice/Lattice/index.ts
@@ -309,7 +309,10 @@ export default class Lattice extends Signer {
         }
       })
 
-      cb(null, addHexPrefix(signedTx.serialize().toString('hex')))
+      const serializedTx = signedTx.serialize()
+      const txHex = addHexPrefix(Buffer.from(serializedTx).toString('hex'))
+
+      cb(null, txHex)
     } catch (err) {
       log.error('error signing transaction with Lattice', err)
       const latticeErrorMessage = (err as LatticeResponseError).errorMessage
@@ -386,7 +389,8 @@ export default class Lattice extends Signer {
     const fwVersion = (this.connection as Client).getFwVersion()
 
     if (fwVersion && (fwVersion.major > 0 || fwVersion.minor >= 15)) {
-      const payload = tx.type ? tx.getMessageToSign(false) : encode(tx.getMessageToSign(false))
+      const message = tx.getMessageToSign()
+      const payload = tx.type ? message : encode(message)
 
       const to = tx.to?.toString() ?? undefined
 
diff --git a/main/signers/ledger/Ledger/eth.ts b/main/signers/ledger/Ledger/eth.ts
index 1e077375e..b68e7bf14 100644
--- a/main/signers/ledger/Ledger/eth.ts
+++ b/main/signers/ledger/Ledger/eth.ts
@@ -1,9 +1,9 @@
 import log from 'electron-log'
+import Transport from '@ledgerhq/hw-transport'
+import Eth from '@ledgerhq/hw-app-eth'
 import { encode } from 'rlp'
 import { addHexPrefix, stripHexPrefix, padToEven } from '@ethereumjs/util'
 import { SignTypedDataVersion, TypedDataUtils } from '@metamask/eth-sig-util'
-import Transport from '@ledgerhq/hw-transport'
-import Eth from '@ledgerhq/hw-app-eth'
 
 import { Derivation, getDerivationPath, deriveHDAccounts } from '../../Signer/derive'
 import { sign } from '../../../transaction'
@@ -82,14 +82,17 @@ export default class LedgerEthereumApp {
   async signTransaction(path: string, ledgerTx: TransactionData) {
     const signedTx = await sign(ledgerTx, (tx) => {
       // legacy transactions aren't RLP encoded before they're returned
-      const message = tx.getMessageToSign(false)
+      const message = Buffer.from(tx.getHashedMessageToSign())
       const legacyMessage = message[0] !== tx.type
       const rawTxHex = legacyMessage ? Buffer.from(encode(message)).toString('hex') : message.toString('hex')
 
       return this.eth.signTransaction(path, rawTxHex, null)
     })
 
-    return addHexPrefix(signedTx.serialize().toString('hex'))
+    const serializedTx = signedTx.serialize()
+    const txHex = addHexPrefix(Buffer.from(serializedTx).toString('hex'))
+
+    return txHex
   }
 
   async getAddress(path: string, display: boolean, chainCode: boolean) {
diff --git a/main/signers/trezor/Trezor/index.ts b/main/signers/trezor/Trezor/index.ts
index a8865e3eb..588858658 100644
--- a/main/signers/trezor/Trezor/index.ts
+++ b/main/signers/trezor/Trezor/index.ts
@@ -321,7 +321,10 @@ export default class Trezor extends Signer {
         }
       })
 
-      cb(null, addHexPrefix(signedTx.serialize().toString('hex')))
+      const serializedTx = signedTx.serialize()
+      const txHex = addHexPrefix(Buffer.from(serializedTx).toString('hex'))
+
+      cb(null, txHex)
     } catch (e: unknown) {
       const err = e as DeviceError
       cb(err)
diff --git a/main/transaction/index.ts b/main/transaction/index.ts
index c4d25b0f1..54155e601 100644
--- a/main/transaction/index.ts
+++ b/main/transaction/index.ts
@@ -1,12 +1,12 @@
 import BigNumber from 'bignumber.js'
-import { addHexPrefix, intToHex } from '@ethereumjs/util'
+import { addHexPrefix, intToHex, PrefixedHexString } from '@ethereumjs/util'
 import { TransactionFactory, TypedTransaction } from '@ethereumjs/tx'
 import { Common } from '@ethereumjs/common'
 
+import chainConfig from '../chains/config'
 import { AppVersion, SignerSummary } from '../signers/Signer'
 import { GasFeesSource, TransactionData, typeSupportsBaseFee } from '../../resources/domain/transaction'
 import { isNonZeroHex } from '../../resources/utils'
-import chainConfig from '../chains/config'
 import { TransactionRequest, TxClassification } from '../accounts/types'
 
 import type { Gas } from '../store/state'
@@ -115,7 +115,7 @@ function populate(rawTx: TransactionData, chainConfig: Common, gas: Gas): Transa
   }
 
   // EIP-1559 case
-  txData.type = intToHex(2)
+  txData.type = parseInt(txData.type) === 4 ? intToHex(4) : intToHex(2)
 
   const useFrameMaxFeePerGas = !rawTx.maxFeePerGas || isNaN(parseInt(rawTx.maxFeePerGas, 16))
   const useFrameMaxPriorityFeePerGas =
@@ -144,8 +144,8 @@ function populate(rawTx: TransactionData, chainConfig: Common, gas: Gas): Transa
 
   // if no valid dapp-supplied value for maxPriorityFeePerGas we use the Frame-supplied value
   txData.maxPriorityFeePerGas = useFrameMaxPriorityFeePerGas
-    ? addHexPrefix(BigNumber(maxPriorityFee).toString(16))
-    : txData.maxPriorityFeePerGas
+    ? (addHexPrefix(BigNumber(maxPriorityFee).toString(16)) as PrefixedHexString)
+    : (txData.maxPriorityFeePerGas as PrefixedHexString)
 
   return txData
 }
diff --git a/package-lock.json b/package-lock.json
index 29f1c9b04..b3df4a00b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,9 +11,9 @@
       "license": "GPL-3.0",
       "dependencies": {
         "@eth-optimism/sdk": "3.2.0",
-        "@ethereumjs/common": "3.1.1",
-        "@ethereumjs/tx": "4.1.1",
-        "@ethereumjs/util": "8.0.3",
+        "@ethereumjs/common": "4.4.0",
+        "@ethereumjs/tx": "5.4.0",
+        "@ethereumjs/util": "9.1.0",
         "@ethersproject/contracts": "5.7.0",
         "@ethersproject/providers": "5.7.2",
         "@framelabs/pylon-client": "0.0.10",
@@ -2109,29 +2109,6 @@
       "integrity": "sha512-0hYQ8SB4Db5zvZB4axdMHGwEaQjkZzFjQiN9LVYvIFB2nSUHW9tYpxWriPrWDASIxiaXax83REcLxuSdnGPZtw==",
       "dev": true
     },
-    "node_modules/@chainsafe/as-sha256": {
-      "version": "0.3.1",
-      "resolved": "https://registry.npmjs.org/@chainsafe/as-sha256/-/as-sha256-0.3.1.tgz",
-      "integrity": "sha512-hldFFYuf49ed7DAakWVXSJODuq3pzJEguD8tQ7h+sGkM18vja+OFoJI9krnGmgzyuZC2ETX0NOIcCTy31v2Mtg=="
-    },
-    "node_modules/@chainsafe/persistent-merkle-tree": {
-      "version": "0.4.2",
-      "resolved": "https://registry.npmjs.org/@chainsafe/persistent-merkle-tree/-/persistent-merkle-tree-0.4.2.tgz",
-      "integrity": "sha512-lLO3ihKPngXLTus/L7WHKaw9PnNJWizlOF1H9NNzHP6Xvh82vzg9F2bzkXhYIFshMZ2gTCEz8tq6STe7r5NDfQ==",
-      "dependencies": {
-        "@chainsafe/as-sha256": "^0.3.1"
-      }
-    },
-    "node_modules/@chainsafe/ssz": {
-      "version": "0.9.4",
-      "resolved": "https://registry.npmjs.org/@chainsafe/ssz/-/ssz-0.9.4.tgz",
-      "integrity": "sha512-77Qtg2N1ayqs4Bg/wvnWfg5Bta7iy7IRh8XqXh7oNMeP2HBbBwx8m6yTpA8p0EHItWPEBkgZd5S5/LSlp3GXuQ==",
-      "dependencies": {
-        "@chainsafe/as-sha256": "^0.3.1",
-        "@chainsafe/persistent-merkle-tree": "^0.4.2",
-        "case": "^1.6.3"
-      }
-    },
     "node_modules/@colors/colors": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/@colors/colors/-/colors-1.6.0.tgz",
@@ -2875,28 +2852,50 @@
       }
     },
     "node_modules/@ethereumjs/common": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/@ethereumjs/common/-/common-3.1.1.tgz",
-      "integrity": "sha512-iEl4gQtcrj2udNhEizs04z7WA15ez1QoXL0XzaCyaNgwRyXezIg1DnfNeZUUpJnkrOF/0rYXyq2UFSLxt1NPQg==",
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/@ethereumjs/common/-/common-4.4.0.tgz",
+      "integrity": "sha512-Fy5hMqF6GsE6DpYTyqdDIJPJgUtDn4dL120zKw+Pswuo+iLyBsEYuSyzMw6NVzD2vDzcBG9fE4+qX4X2bPc97w==",
       "dependencies": {
-        "@ethereumjs/util": "^8.0.5",
-        "crc-32": "^1.2.0"
+        "@ethereumjs/util": "^9.1.0"
       }
     },
-    "node_modules/@ethereumjs/common/node_modules/@ethereumjs/util": {
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-        "@ethereumjs/util": {
-          "version": "9.1.0",
-          "resolved": "https://registry.npmjs.org/@ethereumjs/util/-/util-9.1.0.tgz",
-          "integrity": "sha512-XBEKsYqLGXLah9PNJbgdkigthkG7TAGvlD/sH12beMXEyHDyigfcbdvHhmLyDWgDyOJn4QwiQUaF7yeuhnjdog==",
-          "requires": {
-            "@ethereumjs/rlp": "^5.0.2",
-            "ethereum-cryptography": "^2.2.1"
-          }
-        },
         "@metamask/eth-sig-util": {
           "version": "8.1.2",
           "resolved": "https://registry.npmjs.org/@metamask/eth-sig-util/-/eth-sig-util-8.1.2.tgz",
diff --git a/package.json b/package.json
index dbeb5ce08..70055928b 100644
--- a/package.json
+++ b/package.json
@@ -62,9 +62,9 @@
   "license": "GPL-3.0",
   "dependencies": {
     "@eth-optimism/sdk": "3.2.0",
-    "@ethereumjs/common": "3.1.1",
-    "@ethereumjs/tx": "4.1.1",
-    "@ethereumjs/util": "8.0.3",
+    "@ethereumjs/common": "4.4.0",
+    "@ethereumjs/tx": "5.4.0",
+    "@ethereumjs/util": "9.1.0",
     "@ethersproject/contracts": "5.7.0",
     "@ethersproject/providers": "5.7.2",
     "@framelabs/pylon-client": "0.0.10",
diff --git a/resources/domain/transaction/index.ts b/resources/domain/transaction/index.ts
index 39b550e6e..fd27b2821 100644
--- a/resources/domain/transaction/index.ts
+++ b/resources/domain/transaction/index.ts
@@ -1,6 +1,8 @@
 import { JsonTx } from '@ethereumjs/tx'
 import { addHexPrefix, isHexString } from '@ethereumjs/util'
 
+import type { PrefixedHexString } from '@ethereumjs/util'
+
 export enum GasFeesSource {
   Dapp = 'Dapp',
   Frame = 'Frame'
@@ -12,7 +14,7 @@ export interface TransactionData extends Omit<JsonTx, 'chainId' | 'type'> {
   from?: string
   feesUpdated?: boolean
   chainId: string
-  type: string
+  type: PrefixedHexString
   gasFeesSource: GasFeesSource
   recipientType?: string
 }
diff --git a/resources/utils/index.ts b/resources/utils/index.ts
index fafef6b41..b138116f8 100644
--- a/resources/utils/index.ts
+++ b/resources/utils/index.ts
@@ -1,5 +1,5 @@
 import { randomInt } from 'crypto'
-import { addHexPrefix, intToHex, stripHexPrefix } from '@ethereumjs/util'
+import { addHexPrefix, intToHex, PrefixedHexString, stripHexPrefix } from '@ethereumjs/util'
 import { getAddress as getChecksumAddress } from '@ethersproject/address'
 
 const weiToGwei = (wei: number) => wei / 1e9
@@ -82,11 +82,11 @@ const matchFilter = (filter = '', properties: string[] = []) => {
 }
 
 function getAddress(address: Address) {
-  const lowerCaseAddress = address.toLowerCase()
+  const lowerCaseAddress = address.toLowerCase() as PrefixedHexString
 
   try {
     // this will throw if the address can't be checksummed
-    return getChecksumAddress(lowerCaseAddress)
+    return getChecksumAddress(lowerCaseAddress) as PrefixedHexString
   } catch (e) {
     console.warn(`could not checksum address ${address}, using lowercase address`, e)
     return lowerCaseAddress