diff --git a/gRPC/csharp/Client/packages.config b/gRPC/csharp/Client/packages.config
index c9e904f..519f6ed 100644
--- a/gRPC/csharp/Client/packages.config
+++ b/gRPC/csharp/Client/packages.config
@@ -4,6 +4,6 @@
   <package id="Google.Protobuf" version="3.1.0" targetFramework="net461" />
   <package id="Grpc.Core" version="1.0.0" targetFramework="net461" />
   <package id="Grpc.Tools" version="1.0.0" targetFramework="net461" />
-  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net461" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net461" />
   <package id="System.Interactive.Async" version="3.0.0" targetFramework="net461" />
 </packages>
\ No newline at end of file