diff --git a/BdeBInterfaceContracts.Tests/packages.config b/BdeBInterfaceContracts.Tests/packages.config
index cca8848..f59b7a2 100644
--- a/BdeBInterfaceContracts.Tests/packages.config
+++ b/BdeBInterfaceContracts.Tests/packages.config
@@ -8,7 +8,7 @@
   <package id="Moq" version="4.10.0" targetFramework="net47" />
   <package id="MSTest.TestAdapter" version="1.2.0" targetFramework="net47" />
   <package id="MSTest.TestFramework" version="1.2.0" targetFramework="net47" />
-  <package id="Newtonsoft.Json" version="11.0.1" targetFramework="net47" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net47" />
   <package id="System.Threading.Tasks.Extensions" version="4.3.0" targetFramework="net47" />
   <package id="System.ValueTuple" version="4.4.0" targetFramework="net47" />
 </packages>
\ No newline at end of file