diff --git a/mpc-core-kit-web/mpc-core-kit-bitcoin/package-lock.json b/mpc-core-kit-web/mpc-core-kit-bitcoin/package-lock.json
index 4cfc1e98..11757a7e 100644
--- a/mpc-core-kit-web/mpc-core-kit-bitcoin/package-lock.json
+++ b/mpc-core-kit-web/mpc-core-kit-bitcoin/package-lock.json
@@ -20,7 +20,7 @@
         "@vitejs/plugin-react": "^4.3.1",
         "@web3auth/base": "^9.4.5",
         "@web3auth/ethereum-mpc-provider": "^9.4.5",
-        "@web3auth/mpc-core-kit": "^4.1.0-alpha.0",
+        "@web3auth/mpc-core-kit": "file:web3auth-mpc-core-kit-4.0.0-alpha.1.tgz",
         "axios": "^1.7.7",
         "bitcoinjs-lib": "^6.1.5",
         "bn.js": "^5.2.1",
@@ -4096,19 +4096,34 @@
       "integrity": "sha512-htUWzL2JZoKTtw++WLdQ1AK3wPTe0yezv/twWjpQIzLFkkfoO9Urnl5n9S6jFx98Z1dDRJRBWSED9PSuqY/x7w=="
     },
     "node_modules/@toruslabs/tss-frost-client": {
-      "version": "1.0.0-alpha.0",
-      "resolved": "https://registry.npmjs.org/@toruslabs/tss-frost-client/-/tss-frost-client-1.0.0-alpha.0.tgz",
-      "integrity": "sha512-MvWl8Qt+/DIrNP+vqozYssXlWD1Ofo8jgRmUkiODuOew/wpePhIQv41XTcir7vdv2UU2SsG8N4L0FLU9O69Guw==",
+      "version": "1.0.0-alpha.1",
+      "resolved": "file:toruslabs-tss-frost-client-1.0.0-alpha.1.tgz",
+      "integrity": "sha512-0ySOgZ3Y4ZwC+FgFtOvWj/6zopQokouFaHc23cIWrMyKW583567NWDPzi+MosvbneWajWZKk8DKB8SrFR//9Uw==",
+      "license": "ISC",
       "dependencies": {
+        "@toruslabs/elliptic-wrapper": "^0.1.2-alpha.0",
         "@toruslabs/tss-client-util": "^0.1.1",
-        "@toruslabs/tss-frost-common": "^1.0.1",
+        "@toruslabs/tss-frost-common": "^1.1.0-alpha.0",
         "socket.io-client": "^4.7.2"
       }
     },
+    "node_modules/@toruslabs/tss-frost-client/node_modules/@toruslabs/elliptic-wrapper": {
+      "version": "0.1.2-alpha.0",
+      "resolved": "https://registry.npmjs.org/@toruslabs/elliptic-wrapper/-/elliptic-wrapper-0.1.2-alpha.0.tgz",
+      "integrity": "sha512-GO5gAb6uGslKVmxsW7d/EwEKisJJjobbbqbvmtT/C0ZxJb9Xb3Xa5WtRTuy2gUDioXIRR970vl08TM71uGETkQ==",
+      "license": "ISC",
+      "dependencies": {
+        "@toruslabs/config": "^2.0.2",
+        "@toruslabs/eslint-config-typescript": "^3.0.3",
+        "bn.js": "^5.2.1",
+        "elliptic": "^6.5.4"
+      }
+    },
     "node_modules/@toruslabs/tss-frost-common": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/@toruslabs/tss-frost-common/-/tss-frost-common-1.0.1.tgz",
-      "integrity": "sha512-WmunNSH9XOM/oHQ/CjsTCn4KN9eqxo4keTRV6Yf6roq/S5hzKjOoowWM86vpwPJ6mfa2Qho9bndE2CCS11nKwg=="
+      "version": "1.1.0-alpha.0",
+      "resolved": "file:toruslabs-tss-frost-common-1.1.0-alpha.0.tgz",
+      "integrity": "sha512-VOF1lQ7LTQ3RIKOxxp4uCZve7SNoP4Brg6hp+p5XzZBTZ6s28PVL/5GqQa/MYKQ5b88oqYNfjiOEhIhsGeW/uA==",
+      "license": "ISC"
     },
     "node_modules/@toruslabs/tss-frost-lib-bip340": {
       "version": "0.1.0-alpha.0",
@@ -4730,9 +4745,10 @@
       }
     },
     "node_modules/@web3auth/mpc-core-kit": {
-      "version": "4.1.0-alpha.0",
-      "resolved": "https://registry.npmjs.org/@web3auth/mpc-core-kit/-/mpc-core-kit-4.1.0-alpha.0.tgz",
-      "integrity": "sha512-xVCJFJdtazsyLE7aj6IAaTtLTg29+ybazeq2KBXM6iIX+2owNN9L2kG9gd7IY34UTE9151UQ9VfMOX4FVaz0PA==",
+      "version": "4.0.0-alpha.1",
+      "resolved": "file:web3auth-mpc-core-kit-4.0.0-alpha.1.tgz",
+      "integrity": "sha512-tiJPjgTqm0IS4L3fIg2BxbfnzfLfAn+0MpvW5ckDwaS6fzgKAXJTloc5UPCZE5HAlqqB1gXWg49p/f7M6Z5tvA==",
+      "license": "ISC",
       "dependencies": {
         "@tkey/common-types": "^15.1.0",
         "@tkey/core": "^15.1.0",
@@ -4747,10 +4763,10 @@
         "@toruslabs/metadata-helpers": "^6.0.0",
         "@toruslabs/openlogin-utils": "^8.2.1",
         "@toruslabs/session-manager": "^3.1.0",
-        "@toruslabs/torus.js": "15.2.0-alpha.0",
+        "@toruslabs/torus.js": "^15.1.1",
         "@toruslabs/tss-client": "^3.3.0-alpha.0",
-        "@toruslabs/tss-frost-client": "^1.0.0-alpha.0",
-        "@toruslabs/tss-frost-common": "^1.0.1",
+        "@toruslabs/tss-frost-client": "file:toruslabs-tss-frost-client-1.0.0-alpha.1.tgz",
+        "@toruslabs/tss-frost-common": "file:toruslabs-tss-frost-common-1.1.0-alpha.0.tgz",
         "bn.js": "^5.2.1",
         "bowser": "^2.11.0",
         "elliptic": "^6.5.7",
@@ -4781,29 +4797,7 @@
       "version": "14.2.0",
       "resolved": "https://registry.npmjs.org/@toruslabs/constants/-/constants-14.2.0.tgz",
       "integrity": "sha512-Mb5EfYNSPyvvw5s1JXnpZwritCgp4NmLni1imTqrSKGV3yikYhUn1ufyLMAHGnBBgv4AuMIXBIe3EpJJ+SpA0g==",
-      "engines": {
-        "node": ">=18.x",
-        "npm": ">=9.x"
-      },
-      "peerDependencies": {
-        "@babel/runtime": "7.x"
-      }
-    },
-    "node_modules/@web3auth/mpc-core-kit/node_modules/@toruslabs/torus.js": {
-      "version": "15.2.0-alpha.0",
-      "resolved": "https://registry.npmjs.org/@toruslabs/torus.js/-/torus.js-15.2.0-alpha.0.tgz",
-      "integrity": "sha512-W0HXmffYTbA9pFC3gdj6ON+FsmzJlSksT6hW5mDkRLZp1qSprYppjHnnnelq5n46yOs+290En8LP5s/U5viluw==",
-      "dependencies": {
-        "@toruslabs/bs58": "^1.0.0",
-        "@toruslabs/constants": "^14.0.0",
-        "@toruslabs/eccrypto": "^5.0.4",
-        "@toruslabs/http-helpers": "^7.0.0",
-        "bn.js": "^5.2.1",
-        "elliptic": "^6.5.7",
-        "ethereum-cryptography": "^2.2.1",
-        "json-stable-stringify": "^1.1.1",
-        "loglevel": "^1.9.2"
-      },
+      "license": "MIT",
       "engines": {
         "node": ">=18.x",
         "npm": ">=9.x"
diff --git a/mpc-core-kit-web/mpc-core-kit-bitcoin/package.json b/mpc-core-kit-web/mpc-core-kit-bitcoin/package.json
index bed0e42c..fade42b7 100644
--- a/mpc-core-kit-web/mpc-core-kit-bitcoin/package.json
+++ b/mpc-core-kit-web/mpc-core-kit-bitcoin/package.json
@@ -15,7 +15,7 @@
     "@vitejs/plugin-react": "^4.3.1",
     "@web3auth/base": "^9.4.5",
     "@web3auth/ethereum-mpc-provider": "^9.4.5",
-    "@web3auth/mpc-core-kit": "^4.1.0-alpha.0",
+    "@web3auth/mpc-core-kit": "file:web3auth-mpc-core-kit-4.0.0-alpha.1.tgz",
     "axios": "^1.7.7",
     "bitcoinjs-lib": "^6.1.5",
     "bn.js": "^5.2.1",
@@ -70,4 +70,4 @@
     "build": "tsc && vite build",
     "serve": "vite preview"
   }
-}
\ No newline at end of file
+}
diff --git a/mpc-core-kit-web/mpc-core-kit-bitcoin/src/App.tsx b/mpc-core-kit-web/mpc-core-kit-bitcoin/src/App.tsx
index c2438a92..a5586953 100644
--- a/mpc-core-kit-web/mpc-core-kit-bitcoin/src/App.tsx
+++ b/mpc-core-kit-web/mpc-core-kit-bitcoin/src/App.tsx
@@ -44,7 +44,7 @@ let evmProvider: EthereumSigningProvider;
 if (typeof window !== "undefined") {
   coreKitInstance = new Web3AuthMPCCoreKit({
     web3AuthClientId,
-    web3AuthNetwork: WEB3AUTH_NETWORK.MAINNET,
+    web3AuthNetwork: WEB3AUTH_NETWORK.DEVNET,
     storage: window.localStorage,
     manualSync: true,
     tssLib: tssLibFrostBip340, // tssLibDkls | tssLibFrostBip340 - Taproot only
diff --git a/mpc-core-kit-web/mpc-core-kit-bitcoin/src/BitcoinComponent.tsx b/mpc-core-kit-web/mpc-core-kit-bitcoin/src/BitcoinComponent.tsx
index c33138a8..746c652e 100644
--- a/mpc-core-kit-web/mpc-core-kit-bitcoin/src/BitcoinComponent.tsx
+++ b/mpc-core-kit-web/mpc-core-kit-bitcoin/src/BitcoinComponent.tsx
@@ -12,7 +12,7 @@ const ECPair = ECPairFactory(ecc);
 bitcoinjs.initEccLib(ecc);
 
 const BTCValidator = (pubkey: Buffer, msghash: Buffer, signature: Buffer): boolean => {
-  return ECPair.fromPublicKey(pubkey).verify(msghash, signature);
+  return ecc.verifySchnorr(Uint8Array.from(msghash), Uint8Array.from(pubkey), Uint8Array.from(signature));
 };
 
 const uiConsole = (...args: any): void => {
@@ -77,7 +77,9 @@ export const BitcoinComponent: React.FC<BitcoinComponentProps> = ({ coreKitInsta
 
   const fetchUtxos = async (address: string) => {
     try {
-      const response = await axios.get(`https://blockstream.info/testnet/api/address/${address}/utxo`);
+      const url = `https://blockstream.info/testnet/api/address/${address}/utxo`;
+      console.log(url);
+      const response = await axios.get(url);
       return response.data.filter((utxo: { status: { confirmed: boolean } }) => utxo.status.confirmed);
     } catch (error) {
       console.error("Error fetching UTXOs:", error);
@@ -128,9 +130,9 @@ export const BitcoinComponent: React.FC<BitcoinComponentProps> = ({ coreKitInsta
       const maxFee = Math.max(...Object.values(feeResponse.data as Record<string, number>));
       const fee = Math.ceil(maxFee * 1.2); // Adding 20% buffer to the fee
 
-      if (utxo.value <= fee) {
-        throw new Error(`Insufficient funds: ${utxo.value} satoshis <= ${fee} satoshis (estimated fee)`);
-      }
+      // if (utxo.value <= fee) {
+      //   throw new Error(`Insufficient funds: ${utxo.value} satoshis <= ${fee} satoshis (estimated fee)`);
+      // }
 
       const sendAmount = amount ? parseInt(amount) : utxo.value - fee;
 
diff --git a/mpc-core-kit-web/mpc-core-kit-bitcoin/src/BitcoinSigner.ts b/mpc-core-kit-web/mpc-core-kit-bitcoin/src/BitcoinSigner.ts
index 0297cea5..6bcd54f1 100644
--- a/mpc-core-kit-web/mpc-core-kit-bitcoin/src/BitcoinSigner.ts
+++ b/mpc-core-kit-web/mpc-core-kit-bitcoin/src/BitcoinSigner.ts
@@ -5,6 +5,7 @@ import * as bitcoinjs from "bitcoinjs-lib";
 import ECPairFactory from "ecpair";
 
 import ecc from "@bitcoinerlab/secp256k1";
+import BN from "bn.js";
 
 const ECPair = ECPairFactory(ecc);
 
@@ -21,20 +22,26 @@ export function createBitcoinJsSigner(props: { coreKitInstance: Web3AuthMPCCoreK
 }
 
 
-export function createBitcoinJsSignerBip340(props: { coreKitInstance: Web3AuthMPCCoreKit; network: networks.Network }): SignerAsync {
+export function createBitcoinJsSignerBip340(props: { coreKitInstance: Web3AuthMPCCoreKit; network: networks.Network; }): SignerAsync {
   const bufPubKey = props.coreKitInstance.getPubKeyPoint().toSEC1(secp256k1, true);
   const xOnlyPubKey = bufPubKey.subarray(1, 33);
   const keyPair = ECPair.fromPublicKey(bufPubKey);
-  const tweakedChildNode = keyPair.tweak(bitcoinjs.crypto.taggedHash("TapTweak", xOnlyPubKey));  return {
+  const tweak = bitcoinjs.crypto.taggedHash("TapTweak", xOnlyPubKey);
+  const tweakedChildNode = keyPair.tweak(tweak);
+  const pk = tweakedChildNode.publicKey;
+
+  // const pk = props.coreKitInstance.getPubKeyPoint().toSEC1(secp256k1, true);
+  return {
     sign: async (msg: Buffer) => {
       let sig = await props.coreKitInstance.sign(msg);
       return sig;
     },
     signSchnorr: async (msg: Buffer) => {
-      let sig = await props.coreKitInstance.sign(msg);
+      const keyTweak = new BN(tweak);
+      let sig = await props.coreKitInstance.sign(msg, { keyTweak });
       return sig;
     },
-    publicKey: tweakedChildNode.publicKey,
+    publicKey: pk,
     network: props.network,
   };
 }
diff --git a/mpc-core-kit-web/mpc-core-kit-bitcoin/toruslabs-tss-frost-client-1.0.0-alpha.1.tgz b/mpc-core-kit-web/mpc-core-kit-bitcoin/toruslabs-tss-frost-client-1.0.0-alpha.1.tgz
new file mode 100644
index 00000000..80c4c936
Binary files /dev/null and b/mpc-core-kit-web/mpc-core-kit-bitcoin/toruslabs-tss-frost-client-1.0.0-alpha.1.tgz differ
diff --git a/mpc-core-kit-web/mpc-core-kit-bitcoin/toruslabs-tss-frost-common-1.1.0-alpha.0.tgz b/mpc-core-kit-web/mpc-core-kit-bitcoin/toruslabs-tss-frost-common-1.1.0-alpha.0.tgz
new file mode 100644
index 00000000..f6c10236
Binary files /dev/null and b/mpc-core-kit-web/mpc-core-kit-bitcoin/toruslabs-tss-frost-common-1.1.0-alpha.0.tgz differ
diff --git a/mpc-core-kit-web/mpc-core-kit-bitcoin/web3auth-mpc-core-kit-4.0.0-alpha.1.tgz b/mpc-core-kit-web/mpc-core-kit-bitcoin/web3auth-mpc-core-kit-4.0.0-alpha.1.tgz
new file mode 100644
index 00000000..c7747f33
Binary files /dev/null and b/mpc-core-kit-web/mpc-core-kit-bitcoin/web3auth-mpc-core-kit-4.0.0-alpha.1.tgz differ