diff --git a/Web/UnitTesting WebApi2/UnitTesting.WebApi/UnitTesting.WebApi.Tests/packages.config b/Web/UnitTesting WebApi2/UnitTesting.WebApi/UnitTesting.WebApi.Tests/packages.config
index a4cd103..3a955b9 100644
--- a/Web/UnitTesting WebApi2/UnitTesting.WebApi/UnitTesting.WebApi.Tests/packages.config	
+++ b/Web/UnitTesting WebApi2/UnitTesting.WebApi/UnitTesting.WebApi.Tests/packages.config	
@@ -9,7 +9,7 @@
   <package id="Microsoft.AspNet.WebApi.OwinSelfHost" version="5.2.3" targetFramework="net461" />
   <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net452" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net452" />
-  <package id="Microsoft.Owin" version="2.0.2" targetFramework="net461" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net461" />
   <package id="Microsoft.Owin.Host.HttpListener" version="2.0.2" targetFramework="net461" />
   <package id="Microsoft.Owin.Hosting" version="2.0.2" targetFramework="net461" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net452" />