diff --git a/README.md b/README.md
index ee09cc9..3bb4243 100644
--- a/README.md
+++ b/README.md
@@ -19,41 +19,49 @@ npm install --save satoshi-sdk
 
 ### Example: Open trove
 ```typescript
-import { parseUnits, parseEther } from 'viem';
-import { satoshiClient, getWalletClientByConfig, ProtocolConfigMap, DEBT_TOKEN_DECIMALS, wbtcABI, waitTxReceipt } from 'satoshi-sdk';
-
-const account = privateKeyToAccount(process.env.PRIV as `0x${string}`);
-const protocolConfig = ProtocolConfigMap.BEVM_MAINNET;
-const walletClient = getWalletClientByConfig(protocolConfig, account);
-const satoshiClient = new SatoshiClient(protocolConfig, walletClient);
-
-// Step 1: Parse the borrowing amount and collateral amount
-const borrowingAmt = parseUnits('10', DEBT_TOKEN_DECIMALS); // Converts the string '10' into a BigNumber using the specified number of decimals
-const totalCollAmt = parseEther('0.1'); // Converts the Ether string '0.1' to its Wei equivalent as a BigNumber
-
-// Step 2: Deposit collateral
-const depositHash = await walletClient.writeContract({
-  chain: protocolConfig.CHAIN,
-  account: walletClient.account,
-  address: collateral.ADDRESS,
-  abi: wbtcABI,
-  functionName: 'deposit',
-  args: [],
-  value: totalCollAmt,
-});
-await waitTxReceipt({ publicClient }, depositHash); // Wait for the transaction to be confirmed
-
-// Step 3: Open a trove
-const receipt = await satoshiClient.TroveManager.doOpenTrove({
-  publicClient,
-  walletClient,
-  protocolConfig,
-  collateral,
-  borrowingAmt,
-  totalCollAmt,
-});
-
-console.log({
-  receipt
-})
+import { parseUnits, parseEther, defineChain, } from 'viem';
+import { privateKeyToAccount } from 'viem/accounts';
+import { SatoshiClient, getWalletClientByConfig, ProtocolConfigMap, DEBT_TOKEN_DECIMALS, wbtcABI, waitTxReceipt } from 'satoshi-sdk';
+
+main()
+async function main() {
+  const account = privateKeyToAccount(process.env.PRIV as `0x${string}`);
+  const walletClient = getWalletClientByConfig(protocolConfig, account);
+
+  const protocolConfig = ProtocolConfigMap.BEVM_MAINNET;
+  const satoshiClient = new SatoshiClient(protocolConfig, walletClient);
+  const publicClient = satoshiClient.publicClient;
+  
+  // Step 1: Parse the borrowing amount and collateral amount
+  const borrowingAmt = parseUnits('10', DEBT_TOKEN_DECIMALS); // Converts the string '10' into a BigNumber using the specified number of decimals
+  const totalCollAmt = parseEther('0.1'); // Converts the Ether string '0.1' to its Wei equivalent as a BigNumber
+  
+  // Step 2: convert BEVM BTC to WBTC
+  const collateral = protocolConfig.COLLATERALS[0];
+  const depositHash = await walletClient.writeContract({
+    chain: protocolConfig.CHAIN,
+    account: walletClient.account,
+    address: collateral.ADDRESS,
+    abi: wbtcABI,
+    functionName: 'deposit',
+    args: [],
+    value: totalCollAmt,
+  });
+  const wbtcReceipt = await waitTxReceipt({ publicClient, }, depositHash); // Wait for the transaction to be confirmed
+  console.log({
+    wbtcReceipt,
+  })
+  
+  // Step 3: Open a trove
+  const openTroveReceipt = await satoshiClient.TroveManager.doOpenTrove({
+    collateral,
+    borrowingAmt,
+    totalCollAmt,
+  });
+  
+  console.log({
+    openTroveReceipt
+  })
+}
+
 ```
\ No newline at end of file
diff --git a/package.json b/package.json
index a833aeb..3482f3e 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,11 @@
 {
   "name": "satoshi-sdk",
-  "version": "0.0.2",
+  "version": "0.0.4",
   "description": "Satoshi Protocol SDK",
   "main": "./lib/index.js",
   "files": [
-    "lib/**/*"
+    "lib/**/*",
+    "README.md"
   ],
   "scripts": {
     "lint": "eslint ./src/ --fix",