diff --git a/lib/util.dart b/lib/util.dart
index 86cb98e02..7d094f574 100644
--- a/lib/util.dart
+++ b/lib/util.dart
@@ -153,6 +153,8 @@ class Util {
   /// This actually creates an [EmbeddedGameWidget] with a [SimpleGame] whose only content is an [AnimationComponent] created from the provided [animation].
   /// You can use this implementation as base to easily create your own widgets based on more complex games.
   /// This is intended to be used by non-game apps that want to add a sprite sheet animation.
+  ///
+  /// @Deprecated('Use FlameSpriteAnimation instead')
   widgets.Widget animationAsWidget(Position size, Animation animation) {
     return EmbeddedGameWidget(
       BaseGame()..add(AnimationComponent(size.x, size.y, animation)),
diff --git a/lib/widgets/flame_animation_widget.dart b/lib/widgets/flame_animation_widget.dart
index f139d0ed8..489993315 100644
--- a/lib/widgets/flame_animation_widget.dart
+++ b/lib/widgets/flame_animation_widget.dart
@@ -64,7 +64,7 @@ class _FlameAnimationWidget extends State<FlameAnimationWidget>
       _lastUpdated = DateTime.now().millisecond;
       _controller.repeat(
           // -/+ 60 fps
-          period: Duration(milliseconds: 16));
+          period: const Duration(milliseconds: 16));
     });
   }