diff --git a/gRPC_si_EF/GrpcGreeterClient/GrpcGreeterClient/GrpcGreeterClient.csproj b/gRPC_si_EF/GrpcGreeterClient/GrpcGreeterClient/GrpcGreeterClient.csproj
index f1c6142..b22ca8d 100644
--- a/gRPC_si_EF/GrpcGreeterClient/GrpcGreeterClient/GrpcGreeterClient.csproj
+++ b/gRPC_si_EF/GrpcGreeterClient/GrpcGreeterClient/GrpcGreeterClient.csproj
@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.11.4" />
+    <PackageReference Include="Google.Protobuf" Version="3.15.0" />
     <PackageReference Include="Grpc.Net.Client" Version="2.27.0" />
     <PackageReference Include="Grpc.Tools" Version="2.28.1">
       <PrivateAssets>all</PrivateAssets>