diff --git a/package-lock.json b/package-lock.json
index 3a974f4..ab3aa91 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "hemi-viem",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "hemi-viem",
-      "version": "1.3.0",
+      "version": "1.4.0",
       "license": "MIT",
       "devDependencies": {
         "husky": "4.3.8",
diff --git a/package.json b/package.json
index 17aa37c..c2a777c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hemi-viem",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "description": "Viem extension for the Hemi Network",
   "bugs": {
     "url": "https://github.com/hemilabs/hemi-viem/issues"
diff --git a/src/actions/wallet/bitcoin-tunnel-manager.ts b/src/actions/wallet/bitcoin-tunnel-manager.ts
index cdf13b3..ca9a6cf 100644
--- a/src/actions/wallet/bitcoin-tunnel-manager.ts
+++ b/src/actions/wallet/bitcoin-tunnel-manager.ts
@@ -21,3 +21,23 @@ export function confirmDeposit(
     functionName: "confirmDeposit",
   });
 }
+
+export function initiateWithdrawal(
+  client: Client,
+  parameters: {
+    amount: bigint;
+    btcAddress: string;
+    from: Address;
+    ownerAddress: Address;
+  },
+) {
+  const { amount, btcAddress, from, ownerAddress } = parameters;
+  return writeContract(client, {
+    abi: bitcoinTunnelManagerAbi,
+    account: from,
+    address: bitcoinTunnelManagerAddresses[client.chain!.id],
+    args: [btcAddress, amount, ownerAddress],
+    chain: client.chain!,
+    functionName: "initiateWithdrawal",
+  });
+}