diff --git a/Diffbot.Api.Client/packages.config b/Diffbot.Api.Client/packages.config
old mode 100755
new mode 100644
index 12eec3b..8d386e5
--- a/Diffbot.Api.Client/packages.config
+++ b/Diffbot.Api.Client/packages.config
@@ -4,7 +4,7 @@
   <package id="Microsoft.Bcl.Async" version="1.0.165" targetFramework="net40" requireReinstallation="true" />
   <package id="Microsoft.Bcl.Build" version="1.0.13" targetFramework="net40" />
   <package id="MSBuildTasks" version="1.4.0.65" targetFramework="net40" />
-  <package id="Newtonsoft.Json" version="5.0.8" targetFramework="net40" requireReinstallation="true" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net40" requireReinstallation="true" />
   <package id="System.Net.Http" version="2.0.20126.16343" targetFramework="net47" />
   <package id="System.Net.Http.Formatting.Extension" version="5.2.3.0" targetFramework="net47" />
 </packages>
\ No newline at end of file