diff --git a/THCM4/packages.config b/THCM4/packages.config
index 7f4bea5..292bf18 100644
--- a/THCM4/packages.config
+++ b/THCM4/packages.config
@@ -12,7 +12,7 @@
   <package id="Microsoft.AspNet.WebPages" version="3.2.7" targetFramework="net472" />
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="2.0.1" targetFramework="net472" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.11" targetFramework="net472" />
-  <package id="Microsoft.Owin" version="4.0.1" targetFramework="net472" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net472" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net472" />
   <package id="Modernizr" version="2.8.3" targetFramework="net472" />
   <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net472" />