diff --git a/Samples/OrleansApp/Grains/packages.config b/Samples/OrleansApp/Grains/packages.config
index 036cbe8..f76ba43 100644
--- a/Samples/OrleansApp/Grains/packages.config
+++ b/Samples/OrleansApp/Grains/packages.config
@@ -2,5 +2,5 @@
 <packages>
   <package id="Microsoft.Orleans.Core" version="1.2.3" targetFramework="net451" />
   <package id="Microsoft.Orleans.OrleansCodeGenerator.Build" version="1.2.3" targetFramework="net451" />
-  <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net451" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net451" />
 </packages>
\ No newline at end of file