diff --git a/FullStockTickerSample/grpc/FullStockTickerAuth/FullStockTicker/src/TraderSys.FullStockTicker.Client/TraderSys.FullStockTicker.Client.csproj b/FullStockTickerSample/grpc/FullStockTickerAuth/FullStockTicker/src/TraderSys.FullStockTicker.Client/TraderSys.FullStockTicker.Client.csproj
index 31efd54..6080395 100644
--- a/FullStockTickerSample/grpc/FullStockTickerAuth/FullStockTicker/src/TraderSys.FullStockTicker.Client/TraderSys.FullStockTicker.Client.csproj
+++ b/FullStockTickerSample/grpc/FullStockTickerAuth/FullStockTicker/src/TraderSys.FullStockTicker.Client/TraderSys.FullStockTicker.Client.csproj
@@ -1,11 +1,11 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>netstandard2.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.9.1" />
+    <PackageReference Include="Google.Protobuf" Version="3.15.0" />
     <PackageReference Include="Grpc.Auth" Version="2.23.0" />
     <PackageReference Include="Grpc.Net.ClientFactory" Version="0.2.23-pre1" />
     <PackageReference Include="Grpc.Net.Common" Version="0.2.23-pre1" />