diff --git a/receiver/kafkareceiver/kafka_receiver_test.go b/receiver/kafkareceiver/kafka_receiver_test.go
index fd73bda72fc..e8db37985df 100644
--- a/receiver/kafkareceiver/kafka_receiver_test.go
+++ b/receiver/kafkareceiver/kafka_receiver_test.go
@@ -217,7 +217,7 @@ func TestTracesConsumerGroupHandler_error_nextConsumer(t *testing.T) {
 
 	td := pdata.NewTraces()
 	td.ResourceSpans().AppendEmpty()
-	bts, err := td.ToOtlpProtoBytes()
+	bts, err := otlp.NewProtobufTracesMarshaler().Marshal(td)
 	require.NoError(t, err)
 	groupClaim.messageChan <- &sarama.ConsumerMessage{Value: bts}
 	close(groupClaim.messageChan)
@@ -401,7 +401,7 @@ func TestLogsConsumerGroupHandler_error_nextConsumer(t *testing.T) {
 	}()
 
 	ld := testdata.GenerateLogsOneLogRecord()
-	bts, err := ld.ToOtlpProtoBytes()
+	bts, err := otlp.NewProtobufLogsMarshaler().Marshal(ld)
 	require.NoError(t, err)
 	groupClaim.messageChan <- &sarama.ConsumerMessage{Value: bts}
 	close(groupClaim.messageChan)
diff --git a/receiver/otlpreceiver/otlp_test.go b/receiver/otlpreceiver/otlp_test.go
index 665014e7204..3fcb0a8bede 100644
--- a/receiver/otlpreceiver/otlp_test.go
+++ b/receiver/otlpreceiver/otlp_test.go
@@ -47,6 +47,7 @@ import (
 	"go.opentelemetry.io/collector/consumer/pdata"
 	collectortrace "go.opentelemetry.io/collector/internal/data/protogen/collector/trace/v1"
 	"go.opentelemetry.io/collector/internal/internalconsumertest"
+	"go.opentelemetry.io/collector/internal/otlp"
 	"go.opentelemetry.io/collector/internal/pdatagrpc"
 	"go.opentelemetry.io/collector/internal/testdata"
 	"go.opentelemetry.io/collector/obsreport/obsreporttest"
@@ -253,8 +254,8 @@ func TestProtoHttp(t *testing.T) {
 	// Wait for the servers to start
 	<-time.After(10 * time.Millisecond)
 
-	traceData := testdata.GenerateTracesOneSpan()
-	traceBytes, err := traceData.ToOtlpProtoBytes()
+	td := testdata.GenerateTracesOneSpan()
+	traceBytes, err := otlp.NewProtobufTracesMarshaler().Marshal(td)
 	if err != nil {
 		t.Errorf("Error marshaling protobuf: %v", err)
 	}
@@ -270,7 +271,7 @@ func TestProtoHttp(t *testing.T) {
 			t.Run(test.name+targetURLPath, func(t *testing.T) {
 				url := fmt.Sprintf("http://%s%s", addr, targetURLPath)
 				tSink.Reset()
-				testHTTPProtobufRequest(t, url, tSink, test.encoding, traceBytes, test.err, traceData)
+				testHTTPProtobufRequest(t, url, tSink, test.encoding, traceBytes, test.err, td)
 			})
 		}
 	}
@@ -682,7 +683,7 @@ func TestShutdown(t *testing.T) {
 	}
 	senderHTTP := func(td pdata.Traces) {
 		// Send request via OTLP/HTTP.
-		traceBytes, err2 := td.ToOtlpProtoBytes()
+		traceBytes, err2 := otlp.NewProtobufTracesMarshaler().Marshal(td)
 		if err2 != nil {
 			t.Errorf("Error marshaling protobuf: %v", err2)
 		}