diff --git a/Package.swift b/Package.swift
index 981d60da..8d88a161 100644
--- a/Package.swift
+++ b/Package.swift
@@ -14,7 +14,7 @@ let package = Package(
         ),
     ],
     dependencies: [
-        .package(url: "https://github.com/SAFE-anwang/BitcoinCore.Swift.git", .upToNextMajor(from: "2.2.3")),
+        .package(url: "https://github.com/SAFE-anwang/BitcoinCore.Swift.git", .upToNextMajor(from: "2.4.7")),
         .package(url: "https://github.com/greymass/swift-scrypt.git", from: "1.0.0"),
         .package(url: "https://github.com/horizontalsystems/HsToolKit.Swift.git", .upToNextMajor(from: "2.0.5")),
     ],
diff --git a/Sources/DogecoinKit/Classes/Core/Kit.swift b/Sources/DogecoinKit/Classes/Core/Kit.swift
index 66a0d67b..355b0ed8 100644
--- a/Sources/DogecoinKit/Classes/Core/Kit.swift
+++ b/Sources/DogecoinKit/Classes/Core/Kit.swift
@@ -44,7 +44,7 @@ public class Kit: AbstractKit {
         }
     }
 
-    private init(extendedKey: HDExtendedKey?, watchAddressPublicKey: WatchAddressPublicKey?, purpose: Purpose, walletId: String, syncMode: BitcoinCore.SyncMode = .api, hasher: ((Data) -> Data)?, networkType: NetworkType = .mainNet, confirmationsThreshold: Int = 6, logger: Logger?) throws {
+    private init(extendedKey: HDExtendedKey?, watchAddressPublicKey: WatchAddressPublicKey?, purpose: Purpose, walletId: String, syncMode: BitcoinCore.SyncMode = .full, hasher: ((Data) -> Data)?, networkType: NetworkType = .mainNet, confirmationsThreshold: Int = 6, logger: Logger?) throws {
         let network = networkType.network
         let logger = logger ?? Logger(minLogLevel: .verbose)
         let databaseFilePath = try DirectoryHelper.directoryURL(for: Kit.name).appendingPathComponent(Kit.databaseFileName(walletId: walletId, networkType: networkType, purpose: purpose, syncMode: syncMode)).path
@@ -56,8 +56,8 @@ public class Kit: AbstractKit {
         case .mainNet:
             let apiTransactionProviderUrl = "https://ltc.blocksdecoded.com/api"
 
-            if case let .blockchair(key) = syncMode {
-                let blockchairApi = BlockchairApi(secretKey: key, chainId: network.blockchairChainId, logger: logger)
+            if case .blockchair = syncMode {
+                let blockchairApi = BlockchairApi(chainId: network.blockchairChainId, logger: logger)
                 let blockchairBlockHashFetcher = BlockchairBlockHashFetcher(blockchairApi: blockchairApi)
                 let blockchairProvider = BlockchairTransactionProvider(blockchairApi: blockchairApi, blockHashFetcher: blockchairBlockHashFetcher)
                 let bCoinApiProvider = BCoinApi(url: apiTransactionProviderUrl, logger: logger)