diff --git "a/\346\235\203\351\231\220\347\256\241\347\220\206/3-ASP.NET Identity/3-ASP.NET Identity/packages.config" "b/\346\235\203\351\231\220\347\256\241\347\220\206/3-ASP.NET Identity/3-ASP.NET Identity/packages.config"
index e7efd02..8e458ee 100644
--- "a/\346\235\203\351\231\220\347\256\241\347\220\206/3-ASP.NET Identity/3-ASP.NET Identity/packages.config"	
+++ "b/\346\235\203\351\231\220\347\256\241\347\220\206/3-ASP.NET Identity/3-ASP.NET Identity/packages.config"	
@@ -27,7 +27,7 @@
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="1.0.3" targetFramework="net452" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.3" targetFramework="net452" />
   <package id="Microsoft.Net.Compilers" version="1.3.2" targetFramework="net452" developmentDependency="true" />
-  <package id="Microsoft.Owin" version="3.1.0" targetFramework="net452" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net452" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net452" />
   <package id="Microsoft.Owin.Security" version="2.1.0" targetFramework="net452" />
   <package id="Microsoft.Owin.Security.Cookies" version="2.1.0" targetFramework="net452" />