diff --git a/src/Roadkill.Core/packages.config b/src/Roadkill.Core/packages.config
index 80bff3413..20440a71b 100644
--- a/src/Roadkill.Core/packages.config
+++ b/src/Roadkill.Core/packages.config
@@ -21,7 +21,7 @@
   <package id="Microsoft.Data.Edm" version="5.6.4" targetFramework="net45" />
   <package id="Microsoft.Data.OData" version="5.6.4" targetFramework="net45" />
   <package id="Microsoft.Data.Services.Client" version="5.6.4" targetFramework="net45" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.1.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.HttpListener" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net45" />
   <package id="Microsoft.Owin.Hosting" version="2.0.2" targetFramework="net45" />