diff --git a/Tests/packages.config b/Tests/packages.config
index 202c56d..78cdf9b 100644
--- a/Tests/packages.config
+++ b/Tests/packages.config
@@ -6,7 +6,7 @@
   <package id="MSTest.TestAdapter" version="1.1.18" targetFramework="net45" />
   <package id="MSTest.TestFramework" version="1.1.18" targetFramework="net45" />
   <package id="NETStandard.Library" version="1.6.1" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="12.0.3" targetFramework="net45" />
   <package id="System.Collections" version="4.3.0" targetFramework="net45" />
   <package id="System.Collections.Concurrent" version="4.3.0" targetFramework="net45" />
   <package id="System.ComponentModel.Annotations" version="4.4.1" targetFramework="net461" />