diff --git a/GustoNetwork/Sources/Network/NetworkClient.swift b/GustoNetwork/Sources/Network/NetworkClient.swift
index b1ff4f1..53ab1f4 100644
--- a/GustoNetwork/Sources/Network/NetworkClient.swift
+++ b/GustoNetwork/Sources/Network/NetworkClient.swift
@@ -1,7 +1,7 @@
 import Foundation
 
 public protocol NetworkClient: Sendable {
-  func request<T>(_ request: Requestable) async throws -> T
+  func request<T: Decodable>(_ request: Requestable) async throws -> T
   var session: URLSession { get }
 }
 
@@ -14,4 +14,9 @@ extension NetworkClient {
       throw NetworkError.responseError(statusCode: httpResponse.statusCode)
     }
   }
+  public func request(_ request: Requestable) async throws -> Void {
+    let request = try request.makeRequest()
+    let (_, response) = try await session.data(for: request)
+    try self.validate(response)
+  }
 }
diff --git a/GustoNetwork/Sources/Network/NetworkProtocolImplement.swift b/GustoNetwork/Sources/Network/NetworkProtocolImplement.swift
index f0061ef..7dfc0a3 100644
--- a/GustoNetwork/Sources/Network/NetworkProtocolImplement.swift
+++ b/GustoNetwork/Sources/Network/NetworkProtocolImplement.swift
@@ -7,12 +7,6 @@ public final class NetworkProtocolImpl: NetworkClient {
     self.session = session
   }
   
-  public func request<T>(_ request: Requestable) async throws -> T {
-    let request = try request.makeRequest()
-    let (_, response) = try await session.data(for: request)
-    try validate(response)
-    return () as! T
-  }
   public func request<T>(_ request: Requestable) async throws -> T where T: Decodable {
     let request = try request.makeRequest()
     let (data, response) = try await session.data(for: request)
diff --git a/GustoNetwork/Sources/Network/RequestableProtocol.swift b/GustoNetwork/Sources/Network/RequestableProtocol.swift
index 8bcc18b..bd63468 100644
--- a/GustoNetwork/Sources/Network/RequestableProtocol.swift
+++ b/GustoNetwork/Sources/Network/RequestableProtocol.swift
@@ -25,7 +25,7 @@ extension Requestable {
     guard let url = URL(string: baseURL + self.path) else {
       throw NetworkError.invalidURL
     }
-    var urlRequest = URLRequest(url: URL(string: baseURL + self.path)!)
+    var urlRequest = URLRequest(url: url)
     urlRequest.httpMethod = self.method.rawValue
     self.headers?.forEach { urlRequest.addValue($1, forHTTPHeaderField: $0) }