diff --git a/source-code/dot-net-fw/AADB2C.WebAPI.ClientCert/packages.config b/source-code/dot-net-fw/AADB2C.WebAPI.ClientCert/packages.config
index da04566..580477b 100644
--- a/source-code/dot-net-fw/AADB2C.WebAPI.ClientCert/packages.config
+++ b/source-code/dot-net-fw/AADB2C.WebAPI.ClientCert/packages.config
@@ -15,6 +15,6 @@
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="2.0.0" targetFramework="net461" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net461" />
   <package id="Modernizr" version="2.8.3" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="11.0.1" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net461" />
   <package id="WebGrease" version="1.6.0" targetFramework="net461" />
 </packages>
\ No newline at end of file