diff --git a/src/Newsletter.SendGrid/packages.config b/src/Newsletter.SendGrid/packages.config
index d86b45d..cc6c67e 100644
--- a/src/Newsletter.SendGrid/packages.config
+++ b/src/Newsletter.SendGrid/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />
   <package id="Sendgrid" version="9.12.0" targetFramework="net461" />
   <package id="System.Net.Http" version="4.3.3" targetFramework="net461" />
   <package id="System.Security.Cryptography.Algorithms" version="4.3.0" targetFramework="net461" />