diff --git a/Dataphoria/Dataphoria.Web.API/packages.config b/Dataphoria/Dataphoria.Web.API/packages.config
index 8546a9628..3b6bb4a6b 100644
--- a/Dataphoria/Dataphoria.Web.API/packages.config
+++ b/Dataphoria/Dataphoria.Web.API/packages.config
@@ -17,7 +17,7 @@
   <package id="Microsoft.AspNet.WebPages" version="3.2.2" targetFramework="net452" />
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="1.0.0" targetFramework="net452" />
   <package id="Microsoft.Net.Compilers" version="1.0.0" targetFramework="net452" developmentDependency="true" />
-  <package id="Microsoft.Owin" version="3.0.0" targetFramework="net452" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net452" />
   <package id="Microsoft.Owin.Security" version="3.0.0" targetFramework="net452" />
   <package id="Microsoft.Owin.Security.Cookies" version="3.0.0" targetFramework="net45" />
   <package id="Microsoft.Owin.Security.Google" version="3.0.0" targetFramework="net452" />