diff --git a/code/webauthn/README.md b/code/webauthn/README.md
index 2ccbc261..2ac0f0b8 100644
--- a/code/webauthn/README.md
+++ b/code/webauthn/README.md
@@ -6,8 +6,8 @@ This demo requires Google Chrome and a device that supports webauthn.
 
 ### Install Dependencies
 
+Use node version `20.16.0`.
 Run `npm install` in both the `frontend` and `contracts` folders.
-Node version 20 is required.
 
 ### Start a local node
 
@@ -19,13 +19,25 @@ era_test_node run
 
 ### Deploying the Contracts
 
+Make a `.env` file and add a private key for a [pre-configured rich wallet](https://docs.zksync.io/build/test-and-debug/in-memory-node#pre-configured-rich-wallets).
+
+```env
+WALLET_PRIVATE_KEY=<0x_YOUR_PRIVATE_KEY>
+```
+
 Deploy the AAFactory, paymaster, and NFT contracts:
 
 ```shell
 npm run deploy
 ```
 
-Once deployed, update the addresses in `frontend/utils/constants.ts`.
+Once deployed, create a `frontend/.env.local` file based example in `frontend/.env.example` and add the deployed addresses.
+
+```env
+NEXT_PUBLIC_AA_FACTORY_ADDRESS=<0x_YOUR_AA_CONTRACT_ADDRESS>
+NEXT_PUBLIC_NFT_CONTRACT_ADDRESS=<0x_YOUR_NFT_CONTRACT_ADDRESS>
+NEXT_PUBLIC_PAYMASTER_ADDRESS=<0x_YOUR_PAYMASTER_CONTRACT_ADDRESS>
+```
 
 ### Deploying a New Smart Account
 
diff --git a/code/webauthn/contracts/deploy/deploy.ts b/code/webauthn/contracts/deploy/deploy.ts
index 13987aed..28e139d6 100644
--- a/code/webauthn/contracts/deploy/deploy.ts
+++ b/code/webauthn/contracts/deploy/deploy.ts
@@ -1,6 +1,5 @@
 import { utils, Wallet, Provider } from 'zksync-ethers';
 import type { HardhatRuntimeEnvironment } from 'hardhat/types';
-import { Deployer } from '@matterlabs/hardhat-zksync';
 // load env file
 import dotenv from 'dotenv';
 import { ethers } from 'ethers';
@@ -12,29 +11,31 @@ export default async function (hre: HardhatRuntimeEnvironment) {
   // @ts-expect-error target config file which can be testnet or local
   const provider = new Provider(hre.network.config.url);
   const wallet = new Wallet(DEPLOYER_PRIVATE_KEY, provider);
-  const deployer = new Deployer(hre, wallet);
 
   // deploy the AA Factory & test deploying an account
-  await deployAAFactory(deployer);
+  await deployAAFactory(hre.deployer);
   // deploy the NFT contract
-  await deployMyNFT(deployer);
+  await deployMyNFT(hre.deployer);
   // deploy the Paymaster contract
-  await deployPaymaster(deployer, wallet);
+  await deployPaymaster(hre.deployer, wallet);
 }
 
-async function deployAAFactory(deployer: Deployer) {
+async function deployAAFactory(deployer: HardhatRuntimeEnvironment['deployer']) {
   const factoryArtifact = await deployer.loadArtifact('AAFactory');
   const aaArtifact = await deployer.loadArtifact('Account');
 
-  const factory = await deployer.deploy(factoryArtifact, [utils.hashBytecode(aaArtifact.bytecode)], undefined, [
-    aaArtifact.bytecode,
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  ] as any);
+  const factory = await deployer.deploy(
+    factoryArtifact,
+    [utils.hashBytecode(aaArtifact.bytecode)],
+    undefined,
+    undefined,
+    [aaArtifact.bytecode]
+  );
   const factoryAddress = await factory.getAddress();
   console.log(`AA factory address: ${factoryAddress}`);
 }
 
-async function deployMyNFT(deployer: Deployer) {
+async function deployMyNFT(deployer: HardhatRuntimeEnvironment['deployer']) {
   const artifact = await deployer.loadArtifact('MyNFT');
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   const constructorArguments: any[] = [];
@@ -46,7 +47,7 @@ async function deployMyNFT(deployer: Deployer) {
   console.log('DONE MINTING');
 }
 
-async function deployPaymaster(deployer: Deployer, wallet: Wallet) {
+async function deployPaymaster(deployer: HardhatRuntimeEnvironment['deployer'], wallet: Wallet) {
   const artifact = await deployer.loadArtifact('GeneralPaymaster');
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   const constructorArguments: any[] = [];
diff --git a/content/tutorials/signing-transactions-with-webauthn/10.index.md b/content/tutorials/signing-transactions-with-webauthn/10.index.md
index fd3dc5f9..027b9825 100644
--- a/content/tutorials/signing-transactions-with-webauthn/10.index.md
+++ b/content/tutorials/signing-transactions-with-webauthn/10.index.md
@@ -8,7 +8,7 @@ description: Learn how to sign transactions with WebAuthn.
 - Make sure your machine satisfies the [system
   requirements](https://github.com/matter-labs/era-compiler-solidity/tree/main#system-requirements).
 - You should have the latest version of Google Chrome installed.
-- You should have [Node.js](https://nodejs.org/en/download) installed.
+- You should have [Node.js](https://nodejs.org/en/download) version `20.16.0` installed.
 - You should have [`era_test_node`](https://docs.zksync.io/build/test-and-debug/in-memory-node#install-and-set-up-era_test_node) installed.
 - If you aren't familiar with paymasters and smart accounts on ZKsync Era, check out the
 [General Paymaster](https://docs.zksync.io/build/start-coding/zksync-101/paymaster) and
diff --git a/content/tutorials/signing-transactions-with-webauthn/20.building-the-contracts.md b/content/tutorials/signing-transactions-with-webauthn/20.building-the-contracts.md
index dac2aef7..4a8e218f 100644
--- a/content/tutorials/signing-transactions-with-webauthn/20.building-the-contracts.md
+++ b/content/tutorials/signing-transactions-with-webauthn/20.building-the-contracts.md
@@ -207,7 +207,7 @@ Finally, it calls the `callVerifier` function to call the `P256Verify` precompil
 
 The `callVerifier` function encodes the input into the correct format and calls the `P256Verify` precompile.
 
-If the returned output is empty, the validation evaluated to false.
+If the returned output is empty, the precompile validation evaluated to false.
 This means that the public key derived from the WebAuthn signature does not match the registered `r1Owner` public key.
 
 The output data should be 1 (in 32 bytes format) if the signature verification process succeeds, or nothing if it fails.