diff --git a/src/Recaptcha.Web-net45/packages.config b/src/Recaptcha.Web-net45/packages.config
index 78c2254..28532ce 100644
--- a/src/Recaptcha.Web-net45/packages.config
+++ b/src/Recaptcha.Web-net45/packages.config
@@ -4,5 +4,5 @@
   <package id="Microsoft.AspNet.Razor" version="3.2.7" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebPages" version="3.2.7" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
 </packages>
\ No newline at end of file