diff --git a/dockercon/2017-copenhagen/mta-dotnet/src/DockerSamples.AspNetChat.Web/packages.config b/dockercon/2017-copenhagen/mta-dotnet/src/DockerSamples.AspNetChat.Web/packages.config
index 716192d..53afaf8 100644
--- a/dockercon/2017-copenhagen/mta-dotnet/src/DockerSamples.AspNetChat.Web/packages.config
+++ b/dockercon/2017-copenhagen/mta-dotnet/src/DockerSamples.AspNetChat.Web/packages.config
@@ -3,7 +3,7 @@
   <package id="Antlr" version="3.4.1.9004" targetFramework="net452" />
   <package id="bootstrap" version="3.0.0" targetFramework="net452" />
   <package id="jQuery" version="1.10.2" targetFramework="net452" />
-  <package id="jQuery.Validation" version="1.11.1" targetFramework="net452" />
+  <package id="jQuery.Validation" version="1.19.3" targetFramework="net452" />
   <package id="log4net" version="2.0.8" targetFramework="net452" />
   <package id="Microsoft.AspNet.Mvc" version="5.2.3" targetFramework="net452" />
   <package id="Microsoft.AspNet.Razor" version="3.2.3" targetFramework="net452" />