diff --git a/Eyes/ImageTester/src/csharp/lib/packages.config b/Eyes/ImageTester/src/csharp/lib/packages.config
index 03219b8..062638f 100644
--- a/Eyes/ImageTester/src/csharp/lib/packages.config
+++ b/Eyes/ImageTester/src/csharp/lib/packages.config
@@ -5,7 +5,7 @@
   <package id="Eyes.Sdk" version="2.5.3" targetFramework="net452" />
   <package id="ILRepack.MSBuild.Task" version="1.0.9" targetFramework="net452" />
   <package id="log4net" version="2.0.0" targetFramework="net452" />
-  <package id="Newtonsoft.Json" version="6.0.1" targetFramework="net452" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net452" />
   <package id="PdfiumViewer" version="2.12.0.0" targetFramework="net452" />
   <package id="PdfiumViewer.Native.x86.v8-xfa" version="2018.4.8.256" targetFramework="net452" />
   <package id="PdfiumViewer.Native.x86_64.v8-xfa" version="2018.4.8.256" targetFramework="net452" />