diff --git a/ConstructorInjection/ConstructorInjection/packages.config b/ConstructorInjection/ConstructorInjection/packages.config
index a1e31c1..024c4d5 100644
--- a/ConstructorInjection/ConstructorInjection/packages.config
+++ b/ConstructorInjection/ConstructorInjection/packages.config
@@ -11,7 +11,7 @@
   <package id="Microsoft.AspNet.WebApi.Tracing" version="5.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.7" targetFramework="net472" />
   <package id="Microsoft.IdentityModel.Protocol.Extensions" version="1.0.2.206221351" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.1.0" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Cors" version="3.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.FileSystems" version="3.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net45" />