diff --git a/LanAdept/packages.config b/LanAdept/packages.config
index e509dd0..3e90a2f 100644
--- a/LanAdept/packages.config
+++ b/LanAdept/packages.config
@@ -26,7 +26,7 @@
   <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebPages.fr" version="3.2.3" targetFramework="net45" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.3" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.1.0" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net45" />
   <package id="Microsoft.Owin.fr" version="3.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb.fr" version="3.1.0" targetFramework="net45" />