diff --git a/stream/stream.go b/stream/stream.go
index 9452317..7abcaf4 100644
--- a/stream/stream.go
+++ b/stream/stream.go
@@ -1144,11 +1144,11 @@ func (s *Stream) Close() error {
 }
 
 // GetStats returns stream statistics
-func (s *Stream) GetStats() map[string]interface{} {
+func (s *Stream) GetStats() map[string]any {
 	s.mu.RLock()
 	defer s.mu.RUnlock()
 
-	return map[string]interface{}{
+	return map[string]any{
 		"packets_out":  atomic.LoadUint64(&s.packetsOut),
 		"packets_in":   atomic.LoadUint64(&s.packetsIn),
 		"bytes_out":    atomic.LoadUint64(&s.bytesOut),
diff --git a/types/reflect_size.go b/types/reflect_size.go
index c8bf8e6..bc79389 100644
--- a/types/reflect_size.go
+++ b/types/reflect_size.go
@@ -6,7 +6,7 @@ import (
 )
 
 // CalculateSize uses reflection to calculate the serialized size of a struct
-func CalculateSize(v interface{}) uint32 {
+func CalculateSize(v any) uint32 {
 	return calculateSizeValue(reflect.ValueOf(v))
 }
 
@@ -58,7 +58,7 @@ func calculateStructSize(v reflect.Value) uint32 {
 	for i := 0; i < v.NumField(); i++ {
 		field := v.Field(i)
 		fieldType := t.Field(i)
-		
+
 		// Skip unexported fields
 		if !field.CanInterface() {
 			continue
@@ -115,7 +115,7 @@ func calculateArraySize(v reflect.Value) uint32 {
 	if v.Len() == 0 {
 		return 0
 	}
-	
+
 	elemSize := getElementSize(v.Type().Elem())
 	return uint32(v.Len()) * elemSize
 }
@@ -173,9 +173,9 @@ type SizeCalculator interface {
 }
 
 // CalculateSizeOptimized uses the Size() method if available, otherwise uses reflection
-func CalculateSizeOptimized(v interface{}) uint32 {
+func CalculateSizeOptimized(v any) uint32 {
 	if sc, ok := v.(SizeCalculator); ok {
 		return sc.Size()
 	}
 	return CalculateSize(v)
-}
\ No newline at end of file
+}