diff --git a/TestAsyncVsThread/packages.config b/TestAsyncVsThread/packages.config
index babf6b4..2a392fa 100644
--- a/TestAsyncVsThread/packages.config
+++ b/TestAsyncVsThread/packages.config
@@ -5,5 +5,5 @@
   <package id="Microsoft.AspNet.WebApi.Core" version="5.2.4" targetFramework="net462" />
   <package id="Microsoft.AspNet.WebApi.WebHost" version="5.2.4" targetFramework="net462" />
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="2.0.0" targetFramework="net462" />
-  <package id="Newtonsoft.Json" version="11.0.1" targetFramework="net462" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net462" />
 </packages>
\ No newline at end of file