diff --git a/WorkFlowManager.Web/packages.config b/WorkFlowManager.Web/packages.config
index 7db46ae..c9a4d77 100644
--- a/WorkFlowManager.Web/packages.config
+++ b/WorkFlowManager.Web/packages.config
@@ -47,7 +47,7 @@
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.3" targetFramework="net451" />
   <package id="Microsoft.Net.Compilers" version="1.0.0" targetFramework="net451" developmentDependency="true" />
   <package id="Microsoft.Net.Http.Headers" version="1.0.0" targetFramework="net451" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net451" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net451" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net451" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net451" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.0.1" targetFramework="net451" />