t

diff --git a/examples/helloworld/helloworld/helloworld.pb.go b/examples/helloworld/helloworld/helloworld.pb.go
index 2d5cbf5d7805..dd1694a818f7 100644
--- a/examples/helloworld/helloworld/helloworld.pb.go
+++ b/examples/helloworld/helloworld/helloworld.pb.go
@@ -14,14 +14,13 @@
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
-// 	protoc        v3.14.0
+// 	protoc-gen-go v1.26.0
+// 	protoc        v3.19.4
 // source: examples/helloworld/helloworld/helloworld.proto
 
 package helloworld
 
 import (
-	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -35,10 +34,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
 // The request message containing the user's name.
 type HelloRequest struct {
 	state         protoimpl.MessageState
diff --git a/examples/helloworld/helloworld/helloworld_grpc.pb.go b/examples/helloworld/helloworld/helloworld_grpc.pb.go
index b1423484d51b..ce25ee75ce99 100644
--- a/examples/helloworld/helloworld/helloworld_grpc.pb.go
+++ b/examples/helloworld/helloworld/helloworld_grpc.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
 // versions:
 // - protoc-gen-go-grpc v1.2.0
-// - protoc             v3.14.0
+// - protoc             v3.19.4
 // source: examples/helloworld/helloworld/helloworld.proto
 
 package helloworld
@@ -10,6 +10,7 @@ import (
 	context "context"
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
+	helloworld "google.golang.org/grpc/examples/helloworld/helloworld"
 	status "google.golang.org/grpc/status"
 )
 
@@ -23,7 +24,7 @@ const _ = grpc.SupportPackageIsVersion7
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type GreeterClient interface {
 	// Sends a greeting
-	SayHello(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error)
+	SayHello(ctx context.Context, in *helloworld.HelloRequest, opts ...grpc.CallOption) (*helloworld.HelloReply, error)
 }
 
 type greeterClient struct {
@@ -34,8 +35,8 @@ func NewGreeterClient(cc grpc.ClientConnInterface) GreeterClient {
 	return &greeterClient{cc}
 }
 
-func (c *greeterClient) SayHello(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error) {
-	out := new(HelloReply)
+func (c *greeterClient) SayHello(ctx context.Context, in *helloworld.HelloRequest, opts ...grpc.CallOption) (*helloworld.HelloReply, error) {
+	out := new(helloworld.HelloReply)
 	err := c.cc.Invoke(ctx, "/helloworld.Greeter/SayHello", in, out, opts...)
 	if err != nil {
 		return nil, err
@@ -48,7 +49,7 @@ func (c *greeterClient) SayHello(ctx context.Context, in *HelloRequest, opts ...
 // for forward compatibility
 type GreeterServer interface {
 	// Sends a greeting
-	SayHello(context.Context, *HelloRequest) (*HelloReply, error)
+	SayHello(context.Context, *helloworld.HelloRequest) (*helloworld.HelloReply, error)
 	mustEmbedUnimplementedGreeterServer()
 }
 
@@ -56,7 +57,7 @@ type GreeterServer interface {
 type UnimplementedGreeterServer struct {
 }
 
-func (UnimplementedGreeterServer) SayHello(context.Context, *HelloRequest) (*HelloReply, error) {
+func (UnimplementedGreeterServer) SayHello(context.Context, *helloworld.HelloRequest) (*helloworld.HelloReply, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method SayHello not implemented")
 }
 func (UnimplementedGreeterServer) mustEmbedUnimplementedGreeterServer() {}
@@ -73,7 +74,7 @@ func RegisterGreeterServer(s grpc.ServiceRegistrar, srv GreeterServer) {
 }
 
 func _Greeter_SayHello_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(HelloRequest)
+	in := new(helloworld.HelloRequest)
 	if err := dec(in); err != nil {
 		return nil, err
 	}
@@ -85,7 +86,7 @@ func _Greeter_SayHello_Handler(srv interface{}, ctx context.Context, dec func(in
 		FullMethod: "/helloworld.Greeter/SayHello",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(GreeterServer).SayHello(ctx, req.(*HelloRequest))
+		return srv.(GreeterServer).SayHello(ctx, req.(*helloworld.HelloRequest))
 	}
 	return interceptor(ctx, in, info, handler)
 }