diff --git a/processor/batchprocessor/batch_processor.go b/processor/batchprocessor/batch_processor.go
index 40896dbb9a2..6a43d064216 100644
--- a/processor/batchprocessor/batch_processor.go
+++ b/processor/batchprocessor/batch_processor.go
@@ -227,7 +227,7 @@ type batchTraces struct {
 }
 
 func newBatchTraces(nextConsumer consumer.Traces) *batchTraces {
-	return &batchTraces{nextConsumer: nextConsumer, traceData: ptrace.NewTraces(), sizer: ptrace.NewProtoMarshaler().(ptrace.Sizer)}
+	return &batchTraces{nextConsumer: nextConsumer, traceData: ptrace.NewTraces(), sizer: ptrace.NewProtoMarshaler()}
 }
 
 // add updates current batchTraces by adding new TraceData object
@@ -274,7 +274,7 @@ type batchMetrics struct {
 }
 
 func newBatchMetrics(nextConsumer consumer.Metrics) *batchMetrics {
-	return &batchMetrics{nextConsumer: nextConsumer, metricData: pmetric.NewMetrics(), sizer: pmetric.NewProtoMarshaler().(pmetric.Sizer)}
+	return &batchMetrics{nextConsumer: nextConsumer, metricData: pmetric.NewMetrics(), sizer: pmetric.NewProtoMarshaler()}
 }
 
 func (bm *batchMetrics) export(ctx context.Context, sendBatchMaxSize int, returnBytes bool) (int, int, error) {
@@ -320,7 +320,7 @@ type batchLogs struct {
 }
 
 func newBatchLogs(nextConsumer consumer.Logs) *batchLogs {
-	return &batchLogs{nextConsumer: nextConsumer, logData: plog.NewLogs(), sizer: plog.NewProtoMarshaler().(plog.Sizer)}
+	return &batchLogs{nextConsumer: nextConsumer, logData: plog.NewLogs(), sizer: plog.NewProtoMarshaler()}
 }
 
 func (bl *batchLogs) export(ctx context.Context, sendBatchMaxSize int, returnBytes bool) (int, int, error) {
diff --git a/processor/batchprocessor/batch_processor_test.go b/processor/batchprocessor/batch_processor_test.go
index c5ccb57afbc..15df36328a2 100644
--- a/processor/batchprocessor/batch_processor_test.go
+++ b/processor/batchprocessor/batch_processor_test.go
@@ -122,7 +122,7 @@ func TestBatchProcessorSpansDeliveredEnforceBatchSize(t *testing.T) {
 }
 
 func TestBatchProcessorSentBySize(t *testing.T) {
-	sizer := ptrace.NewProtoMarshaler().(ptrace.Sizer)
+	sizer := ptrace.NewProtoMarshaler()
 	views := MetricViews()
 	require.NoError(t, view.Register(views...))
 	defer view.Unregister(views...)
@@ -359,7 +359,7 @@ func TestBatchMetricProcessor_ReceivingData(t *testing.T) {
 }
 
 func TestBatchMetricProcessor_BatchSize(t *testing.T) {
-	sizer := pmetric.NewProtoMarshaler().(pmetric.Sizer)
+	sizer := pmetric.NewProtoMarshaler()
 	views := MetricViews()
 	require.NoError(t, view.Register(views...))
 	defer view.Unregister(views...)
@@ -564,7 +564,7 @@ func getTestMetricName(requestNum, index int) string {
 }
 
 func BenchmarkTraceSizeBytes(b *testing.B) {
-	sizer := ptrace.NewProtoMarshaler().(ptrace.Sizer)
+	sizer := ptrace.NewProtoMarshaler()
 	td := testdata.GenerateTraces(8192)
 	for n := 0; n < b.N; n++ {
 		fmt.Println(sizer.TracesSize(td))
@@ -677,7 +677,7 @@ func TestBatchLogProcessor_ReceivingData(t *testing.T) {
 }
 
 func TestBatchLogProcessor_BatchSize(t *testing.T) {
-	sizer := plog.NewProtoMarshaler().(plog.Sizer)
+	sizer := plog.NewProtoMarshaler()
 	views := MetricViews()
 	require.NoError(t, view.Register(views...))
 	defer view.Unregister(views...)