diff --git a/Demo/BasicTunnel-iOS/ViewController.swift b/Demo/BasicTunnel-iOS/ViewController.swift
index 3af9184..b411947 100644
--- a/Demo/BasicTunnel-iOS/ViewController.swift
+++ b/Demo/BasicTunnel-iOS/ViewController.swift
@@ -91,11 +91,12 @@ extension ViewController {
         var builder = TunnelKitProvider.ConfigurationBuilder(ca: ca)
         let socketType: TunnelKitProvider.SocketType = switchTCP.isOn ? .tcp : .udp
         builder.endpointProtocols = [TunnelKitProvider.EndpointProtocol(socketType, port)]
-        builder.cipher = .aes128cbc
+        builder.cipher = .aes256gcm
         builder.digest = .sha1
         builder.mtu = 1350
         builder.compressionFraming = .compLZO
         builder.renegotiatesAfterSeconds = nil
+        builder.usesPIAPatches = true
         builder.shouldDebug = true
         builder.debugLogKey = "Log"
         
diff --git a/Demo/Podfile.lock b/Demo/Podfile.lock
index c02ca3f..29ebc88 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 (1.1.0):
-    - TunnelKit/AppExtension (= 1.1.0)
-    - TunnelKit/Core (= 1.1.0)
-  - TunnelKit/AppExtension (1.1.0):
+  - TunnelKit (1.1.2):
+    - TunnelKit/AppExtension (= 1.1.2)
+    - TunnelKit/Core (= 1.1.2)
+  - TunnelKit/AppExtension (1.1.2):
     - SwiftyBeaver
     - TunnelKit/Core
-  - TunnelKit/Core (1.1.0):
+  - TunnelKit/Core (1.1.2):
     - OpenSSL-Apple (~> 1.1.0h)
     - SwiftyBeaver
 
@@ -26,7 +26,7 @@ EXTERNAL SOURCES:
 SPEC CHECKSUMS:
   OpenSSL-Apple: a93b8f2eec8783ff40d9a9304de180ab68bb647c
   SwiftyBeaver: ccfcdf85a04d429f1633f668650b0ce8020bda3a
-  TunnelKit: 21af89c08aadfa81d25835a1faa46ddf12374772
+  TunnelKit: 392e78dd45cded30a6f814200b8334c33901f677
 
 PODFILE CHECKSUM: f66dfaaa92a8d04ab2743f3caeab0ac9f9f25859