diff --git a/.changeset/light-parents-drum.md b/.changeset/light-parents-drum.md
new file mode 100644
index 0000000..5936a9a
--- /dev/null
+++ b/.changeset/light-parents-drum.md
@@ -0,0 +1,5 @@
+---
+"@babylonlabs-io/bbn-wallet-connect": minor
+---
+
+add external connectors
diff --git a/src/core/wallets/bbn/keplr/provider.ts b/src/core/wallets/bbn/keplr/provider.ts
index 29b84df..05a90a4 100644
--- a/src/core/wallets/bbn/keplr/provider.ts
+++ b/src/core/wallets/bbn/keplr/provider.ts
@@ -31,7 +31,7 @@ export class KeplrProvider extends BBNProvider {
     this.rpc = config.rpc;
   }
 
-  async connectWallet(): Promise<this> {
+  async connectWallet(): Promise<void> {
     if (!this.chainId) throw new Error("Chain ID is not initialized");
     if (!this.rpc) throw new Error("RPC URL is not initialized");
 
@@ -49,7 +49,6 @@ export class KeplrProvider extends BBNProvider {
         publicKeyHex: Buffer.from(key.pubKey).toString("hex"),
         address: bech32Address,
       };
-      return this;
     } else {
       throw new Error("Could not connect to Keplr");
     }
diff --git a/src/core/wallets/btc/okx/provider.ts b/src/core/wallets/btc/okx/provider.ts
index 050b34f..2cbc418 100644
--- a/src/core/wallets/btc/okx/provider.ts
+++ b/src/core/wallets/btc/okx/provider.ts
@@ -33,7 +33,7 @@ export class OKXProvider extends BTCProvider {
     this.provider = wallet[providerName];
   }
 
-  connectWallet = async (): Promise<this> => {
+  connectWallet = async (): Promise<void> => {
     try {
       await this.wallet.enable(); // Connect to OKX Wallet extension
     } catch (error) {
@@ -60,7 +60,6 @@ export class OKXProvider extends BTCProvider {
         publicKeyHex: compressedPublicKey,
         address,
       };
-      return this;
     } else {
       throw new Error("Could not connect to OKX Wallet");
     }