diff --git a/CHANGELOG.md b/CHANGELOG.md
index fcf1b30..5012828 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Fixed
+
+- Compiling errors in demo target.
+
 ## 1.4.0 (2018-11-12)
 
 ### Added
diff --git a/Demo/BasicTunnel-iOS/ViewController.swift b/Demo/BasicTunnel-iOS/ViewController.swift
index 6b574ea..5d7c806 100644
--- a/Demo/BasicTunnel-iOS/ViewController.swift
+++ b/Demo/BasicTunnel-iOS/ViewController.swift
@@ -95,8 +95,8 @@ extension ViewController {
         sessionBuilder.renegotiatesAfter = nil
         sessionBuilder.usesPIAPatches = true
         var builder = TunnelKitProvider.ConfigurationBuilder(sessionConfiguration: sessionBuilder.build())
-        let socketType: TunnelKitProvider.SocketType = switchTCP.isOn ? .tcp : .udp
-        builder.endpointProtocols = [TunnelKitProvider.EndpointProtocol(socketType, port)]
+        let socketType: SocketType = switchTCP.isOn ? .tcp : .udp
+        builder.endpointProtocols = [EndpointProtocol(socketType, port)]
         builder.mtu = 1350
         builder.shouldDebug = true
         builder.debugLogKey = "Log"
diff --git a/Demo/BasicTunnel-macOS/ViewController.swift b/Demo/BasicTunnel-macOS/ViewController.swift
index 13a9c5d..cf1407f 100644
--- a/Demo/BasicTunnel-macOS/ViewController.swift
+++ b/Demo/BasicTunnel-macOS/ViewController.swift
@@ -95,9 +95,9 @@ extension ViewController {
         sessionBuilder.renegotiatesAfter = nil
         sessionBuilder.usesPIAPatches = true
         var builder = TunnelKitProvider.ConfigurationBuilder(sessionConfiguration: sessionBuilder.build())
-//        let socketType: TunnelKitProvider.SocketType = isTCP ? .tcp : .udp
-        let socketType: TunnelKitProvider.SocketType = .udp
-        builder.endpointProtocols = [TunnelKitProvider.EndpointProtocol(socketType, port)]
+//        let socketType: SocketType = isTCP ? .tcp : .udp
+        let socketType: SocketType = .udp
+        builder.endpointProtocols = [EndpointProtocol(socketType, port)]
         builder.mtu = 1350
         builder.shouldDebug = true
         builder.debugLogKey = "Log"
diff --git a/Demo/Podfile.lock b/Demo/Podfile.lock
index 3f745b3..e7b5674 100644
--- a/Demo/Podfile.lock
+++ b/Demo/Podfile.lock
@@ -1,13 +1,13 @@
 PODS:
   - OpenSSL-Apple (1.1.0i-v2)
   - SwiftyBeaver (1.6.1)
-  - TunnelKit (1.3.0):
-    - TunnelKit/AppExtension (= 1.3.0)
-    - TunnelKit/Core (= 1.3.0)
-  - TunnelKit/AppExtension (1.3.0):
+  - TunnelKit (1.4.0):
+    - TunnelKit/AppExtension (= 1.4.0)
+    - TunnelKit/Core (= 1.4.0)
+  - TunnelKit/AppExtension (1.4.0):
     - SwiftyBeaver
     - TunnelKit/Core
-  - TunnelKit/Core (1.3.0):
+  - TunnelKit/Core (1.4.0):
     - OpenSSL-Apple (~> 1.1.0h)
     - SwiftyBeaver
 
@@ -26,7 +26,7 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   OpenSSL-Apple: a93b8f2eec8783ff40d9a9304de180ab68bb647c
   SwiftyBeaver: ccfcdf85a04d429f1633f668650b0ce8020bda3a
-  TunnelKit: 8e747cac28959ebfdfa4eeab589c933f1856c0fb
+  TunnelKit: 8ac6ca743020b62e63bea66b3d169c53666fb737
 
 PODFILE CHECKSUM: f66dfaaa92a8d04ab2743f3caeab0ac9f9f25859