diff --git a/src/CSSSprite/packages.config b/src/CSSSprite/packages.config
index 124aa3b..32fd9d1 100644
--- a/src/CSSSprite/packages.config
+++ b/src/CSSSprite/packages.config
@@ -46,7 +46,7 @@
   <package id="Microsoft.Net.Http.zh-Hant" version="2.0.20710.0" targetFramework="net40" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net40" />
   <package id="Modernizr" version="2.6.2" targetFramework="net40" />
-  <package id="Newtonsoft.Json" version="4.5.11" targetFramework="net40" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net40" />
   <package id="System.Spatial" version="5.2.0" targetFramework="net40" />
   <package id="WebGrease" version="1.3.0" targetFramework="net40" />
 </packages>
\ No newline at end of file