diff --git a/PrancingTurtle/PrancingTurtle/packages.config b/PrancingTurtle/PrancingTurtle/packages.config
index b9b6147..985921e 100644
--- a/PrancingTurtle/PrancingTurtle/packages.config
+++ b/PrancingTurtle/PrancingTurtle/packages.config
@@ -37,7 +37,7 @@
   <package id="Microsoft.Extensions.Primitives" version="3.0.0" targetFramework="net462" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="3.2.3" targetFramework="net462" />
   <package id="Microsoft.Net.Compilers" version="2.3.1" targetFramework="net462" developmentDependency="true" />
-  <package id="Microsoft.Owin" version="3.1.0" targetFramework="net462" />
+  <package id="Microsoft.Owin" version="4.0.0" targetFramework="net462" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.1.0" targetFramework="net462" />
   <package id="Microsoft.Owin.Security" version="3.1.0" targetFramework="net462" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.1.0" targetFramework="net462" />