diff --git a/examples/csharp/Helloworld/Greeter/Greeter.csproj b/examples/csharp/Helloworld/Greeter/Greeter.csproj
index 7989f795418..223b7fe1242 100644
--- a/examples/csharp/Helloworld/Greeter/Greeter.csproj
+++ b/examples/csharp/Helloworld/Greeter/Greeter.csproj
@@ -5,9 +5,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.6.1" />
-    <PackageReference Include="Grpc" Version="1.17.0" />
-    <PackageReference Include="Grpc.Tools" Version="1.17.0" PrivateAssets="All" />
+    <PackageReference Include="Google.Protobuf" Version="3.8.0" />
+    <PackageReference Include="Grpc" Version="2.23.0" />
+    <PackageReference Include="Grpc.Tools" Version="2.23.0" PrivateAssets="All" />
   </ItemGroup>
 
   <ItemGroup>