diff --git a/FeatureSwitch.Web.Optimization/packages.config b/FeatureSwitch.Web.Optimization/packages.config
index 909f068..034540c 100644
--- a/FeatureSwitch.Web.Optimization/packages.config
+++ b/FeatureSwitch.Web.Optimization/packages.config
@@ -4,6 +4,6 @@
   <package id="FeatureSwitch" version="1.3.0" targetFramework="net45" />
   <package id="Microsoft.AspNet.Web.Optimization" version="1.1.2" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="5.0.8" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="WebGrease" version="1.5.2" targetFramework="net45" />
 </packages>
\ No newline at end of file