diff --git a/Cartfile b/Cartfile
index e523d1a..220fa84 100644
--- a/Cartfile
+++ b/Cartfile
@@ -1 +1 @@
-github "antitypical/Result" ~> 1.0.0
+github "antitypical/Result" ~> 2.0.0
diff --git a/Cartfile.resolved b/Cartfile.resolved
index 41b9fcd..4c66a71 100644
--- a/Cartfile.resolved
+++ b/Cartfile.resolved
@@ -1,2 +1,2 @@
-github "Alamofire/Alamofire" "3.2.1"
-github "antitypical/Result" "1.0.2"
+github "Alamofire/Alamofire" "3.3.0"
+github "antitypical/Result" "2.0.0"
diff --git a/Carthage/Checkouts/Alamofire b/Carthage/Checkouts/Alamofire
index 5b6155c..bf208d0 160000
--- a/Carthage/Checkouts/Alamofire
+++ b/Carthage/Checkouts/Alamofire
@@ -1 +1 @@
-Subproject commit 5b6155ca2d3b584b5f0360068a02f978950dd18c
+Subproject commit bf208d0c6d633f244a398f5580f5a141bab128b1
diff --git a/Carthage/Checkouts/Result b/Carthage/Checkouts/Result
index 382f933..5dec9cf 160000
--- a/Carthage/Checkouts/Result
+++ b/Carthage/Checkouts/Result
@@ -1 +1 @@
-Subproject commit 382f9339404d24f632a5f98453c1e08a5ea55904
+Subproject commit 5dec9cf225d5fa3b0602679fb2638e40191da46b
diff --git a/Example/SingleRequestViewController.swift b/Example/SingleRequestViewController.swift
index b3c271f..621615e 100644
--- a/Example/SingleRequestViewController.swift
+++ b/Example/SingleRequestViewController.swift
@@ -14,7 +14,11 @@ public class StringIdentifierGenerator: RequestIdentifierGenerator {
     private var currentIdentifier = 1
     
     public func next() -> RequestIdentifier {
-        return .StringIdentifier("id\(currentIdentifier++)")
+        defer {
+            currentIdentifier += 1
+        }
+        
+        return .StringIdentifier("id\(currentIdentifier)")
     }
 }
 
diff --git a/JSONRPCKit/NumberIdentifierGenerator.swift b/JSONRPCKit/NumberIdentifierGenerator.swift
index da380ce..2ba5526 100644
--- a/JSONRPCKit/NumberIdentifierGenerator.swift
+++ b/JSONRPCKit/NumberIdentifierGenerator.swift
@@ -13,6 +13,10 @@ public class NumberIdentifierGenerator: RequestIdentifierGenerator {
     private var currentIdentifier = 1
     
     public func next() -> RequestIdentifier {
-        return .NumberIdentifier(currentIdentifier++)
+        defer {
+            currentIdentifier += 1
+        }
+        
+        return .NumberIdentifier(currentIdentifier)
     }
 }
diff --git a/JSONRPCKit/RequestType.swift b/JSONRPCKit/RequestType.swift
index c5c88eb..10aa7bf 100644
--- a/JSONRPCKit/RequestType.swift
+++ b/JSONRPCKit/RequestType.swift
@@ -9,7 +9,7 @@
 import Foundation
 
 public protocol RequestType {
-    typealias Response
+    associatedtype Response
     
     var method: String { get }