diff --git a/Pyro.Smart_Test/packages.config b/Pyro.Smart_Test/packages.config
index a224e2b7..2912659c 100644
--- a/Pyro.Smart_Test/packages.config
+++ b/Pyro.Smart_Test/packages.config
@@ -3,7 +3,7 @@
   <package id="Hl7.Fhir.STU3" version="0.96.0" targetFramework="net46" />
   <package id="Hl7.Fhir.Support" version="0.96.0" targetFramework="net46" />
   <package id="Hl7.FhirPath" version="0.96.0" targetFramework="net46" />
-  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="net46" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net46" />
   <package id="NUnit" version="3.10.1" targetFramework="net46" />
   <package id="NUnit3TestAdapter" version="3.10.0" targetFramework="net46" />
   <package id="System.ValueTuple" version="4.5.0" targetFramework="net46" />