diff --git a/Sources/SimpleHTTP/Session/Session.swift b/Sources/SimpleHTTP/Session/Session.swift
index 7710022..e6fa124 100644
--- a/Sources/SimpleHTTP/Session/Session.swift
+++ b/Sources/SimpleHTTP/Session/Session.swift
@@ -41,6 +41,7 @@ public class Session {
     ///
     /// The request is validated and decoded appropriately on success.
     /// - Returns: a async Output on success, an error otherwise
+    @concurrent
     public func response<Output: Decodable>(for request: Request<Output>) async throws -> Output {
         let result = try await dataPublisher(for: request)
 
@@ -62,6 +63,7 @@ public class Session {
     }
 
     /// Perform asynchronously `request` which has no return value
+    @concurrent
     public func response(for request: Request<Void>) async throws {
         let result = try await dataPublisher(for: request)
         log(.success(()), for: result.request)
diff --git a/Sources/SimpleHTTP/Session/SessionConfiguration.swift b/Sources/SimpleHTTP/Session/SessionConfiguration.swift
index 6b8e7fe..957f3de 100644
--- a/Sources/SimpleHTTP/Session/SessionConfiguration.swift
+++ b/Sources/SimpleHTTP/Session/SessionConfiguration.swift
@@ -4,8 +4,6 @@ import Foundation
 public struct SessionConfiguration {
     /// data encoders/decoders configuration per content type
     let data: ContentDataCodersConfiguration
-    /// queue on which to decode data
-    let decodingQueue: DispatchQueue
     /// an interceptor to apply custom behavior on the session requests/responses.
     /// To apply multiple interceptors use `ComposeInterceptor`
     let interceptor: Interceptor
@@ -17,21 +15,18 @@ public struct SessionConfiguration {
     /// - Parameter interceptors: interceptor list to apply on the session requests/responses
     public init(
         data: ContentDataCodersConfiguration = .init(),
-        decodingQueue: DispatchQueue = .main,
         interceptors: CompositeInterceptor = []) {
             self.data = data
-            self.decodingQueue = decodingQueue
             self.interceptor = interceptors
         }
 
     /// - Parameter dataError: Error type to use when having error with data
     public init<DataError: Error & Decodable>(
         data: ContentDataCodersConfiguration,
-        decodingQueue: DispatchQueue = .main,
         interceptors: CompositeInterceptor = [],
         dataError: DataError.Type
     ) {
-        self.init(data: data, decodingQueue: decodingQueue, interceptors: interceptors)
+        self.init(data: data, interceptors: interceptors)
         self.errorConverter = { [decoders=data.decoders] data, contentType in
             guard let decoder = decoders[contentType] else {
                 throw SessionConfigurationError.missingDecoder(contentType)