diff --git a/Demos/WebForms/GroupDocs.Comparison.WebForms.Test/packages.config b/Demos/WebForms/GroupDocs.Comparison.WebForms.Test/packages.config
index 685086f..161823f 100644
--- a/Demos/WebForms/GroupDocs.Comparison.WebForms.Test/packages.config
+++ b/Demos/WebForms/GroupDocs.Comparison.WebForms.Test/packages.config
@@ -3,7 +3,7 @@
   <package id="Castle.Core" version="4.3.1" targetFramework="net461" />
   <package id="Huygens" version="1.4.5" targetFramework="net461" />
   <package id="Moq" version="4.10.1" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />
   <package id="NUnit" version="3.11.0" targetFramework="net461" />
   <package id="NUnit.Runners" version="2.6.4" targetFramework="net461" />
   <package id="NUnit3TestAdapter" version="3.11.2" targetFramework="net461" />