diff --git a/XwSMTPTest/packages.config b/XwSMTPTest/packages.config
index 99b8663..e58d8fe 100644
--- a/XwSMTPTest/packages.config
+++ b/XwSMTPTest/packages.config
@@ -3,5 +3,5 @@
   <package id="BouncyCastle" version="1.8.5" targetFramework="net462" />
   <package id="MailKit" version="2.5.1" targetFramework="net462" />
   <package id="MimeKit" version="2.5.1" targetFramework="net462" />
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net462" />
+  <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net462" />
 </packages>
\ No newline at end of file