diff --git a/src/Salient.ReliableHttpClient.CassiniDev.Tests/packages.config b/src/Salient.ReliableHttpClient.CassiniDev.Tests/packages.config
index f6399c8..25abebf 100644
--- a/src/Salient.ReliableHttpClient.CassiniDev.Tests/packages.config
+++ b/src/Salient.ReliableHttpClient.CassiniDev.Tests/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="4.5.11" targetFramework="net40" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net40" />
   <package id="Salient.ReflectiveLoggingAdapter" version="3.2.0" />
 </packages>
\ No newline at end of file