diff --git a/HealthCarePortal/packages.config b/HealthCarePortal/packages.config
index 789ca38..082976d 100644
--- a/HealthCarePortal/packages.config
+++ b/HealthCarePortal/packages.config
@@ -53,7 +53,7 @@
   <package id="Microsoft.OData.ProxyExtensions" version="1.0.35" targetFramework="net452" />
   <package id="Microsoft.Office365.Discovery" version="1.0.22" targetFramework="net452" />
   <package id="Microsoft.Office365.OutlookServices" version="1.0.41.0" targetFramework="net452" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net452" />
+  <package id="Microsoft.Owin" version="4.2.2" targetFramework="net452" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net452" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net452" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.0.1" targetFramework="net452" />