diff --git a/dotnet/v3.5/packages.config b/dotnet/v3.5/packages.config
index 82f34aa..673f613 100644
--- a/dotnet/v3.5/packages.config
+++ b/dotnet/v3.5/packages.config
@@ -4,6 +4,6 @@
   <package id="Google.Apis.Auth" version="1.51.0" targetFramework="net45" />
   <package id="Google.Apis.Core" version="1.51.0" targetFramework="net45" />
   <package id="Google.Apis.Dfareporting.v3_5" version="1.51.0.2332" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="10.0.2" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="System.Net.Http" version="4.3.4" targetFramework="net45" />
 </packages>