diff --git a/src/SourceIndexServer/packages.config b/src/SourceIndexServer/packages.config
index bb6c21f3e..c7f358439 100644
--- a/src/SourceIndexServer/packages.config
+++ b/src/SourceIndexServer/packages.config
@@ -16,5 +16,5 @@
   <package id="Microsoft.jQuery.Unobtrusive.Ajax" version="2.0.20710.0" targetFramework="net45" />
   <package id="Microsoft.jQuery.Unobtrusive.Validation" version="2.0.20710.0" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="6.0.4" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
 </packages>
\ No newline at end of file