diff --git a/DataflowSignalrAngularDemo/DataflowSignalrAngularDemo/packages.config b/DataflowSignalrAngularDemo/DataflowSignalrAngularDemo/packages.config
index 034e16b..a620b86 100644
--- a/DataflowSignalrAngularDemo/DataflowSignalrAngularDemo/packages.config
+++ b/DataflowSignalrAngularDemo/DataflowSignalrAngularDemo/packages.config
@@ -20,7 +20,7 @@
   <package id="Microsoft.AspNet.WebApi.Cors" version="5.2.3" targetFramework="net461" />
   <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.3" targetFramework="net461" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.3" targetFramework="net461" />
-  <package id="Microsoft.Owin" version="3.0.1" targetFramework="net45" />
+  <package id="Microsoft.Owin" version="4.2.2" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="3.0.1" targetFramework="net461" />
   <package id="Microsoft.Owin.Security" version="3.0.1" targetFramework="net461" />
   <package id="Microsoft.Tpl.Dataflow" version="4.5.24" targetFramework="net45" />