diff --git a/Saml2SampleServiceProvider/packages.config b/Saml2SampleServiceProvider/packages.config
index 3bf3e0e..70298dc 100644
--- a/Saml2SampleServiceProvider/packages.config
+++ b/Saml2SampleServiceProvider/packages.config
@@ -21,7 +21,7 @@
   <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net462" />
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="1.0.8" targetFramework="net462" />
   <package id="Microsoft.Net.Compilers" version="2.4.0" targetFramework="net462" developmentDependency="true" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net462" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net462" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net462" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net462" />
   <package id="Modernizr" version="2.6.2" targetFramework="net462" />