diff --git a/2016/IdentityTest/IdentityTest.WinAuth/packages.config b/2016/IdentityTest/IdentityTest.WinAuth/packages.config
index 86a3b0ca..12824eff 100644
--- a/2016/IdentityTest/IdentityTest.WinAuth/packages.config
+++ b/2016/IdentityTest/IdentityTest.WinAuth/packages.config
@@ -3,7 +3,7 @@
   <package id="IdentityServer.WindowsAuthentication" version="1.1.1" targetFramework="net452" />
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="1.0.0" targetFramework="net452" />
   <package id="Microsoft.Net.Compilers" version="1.0.0" targetFramework="net452" developmentDependency="true" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net452" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net452" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net452" />
   <package id="Owin" version="1.0" targetFramework="net452" />
 </packages>
\ No newline at end of file