diff --git a/lib/practice/chosetopic/topicpicture/bloc/topic_picture_bloc.dart b/lib/practice/chosetopic/topicpicture/bloc/topic_picture_bloc.dart
index 457a2d6..c7b2c59 100644
--- a/lib/practice/chosetopic/topicpicture/bloc/topic_picture_bloc.dart
+++ b/lib/practice/chosetopic/topicpicture/bloc/topic_picture_bloc.dart
@@ -1,10 +1,9 @@
-import 'dart:async';
 
-import 'package:bloc/bloc.dart';
-import 'package:meta/meta.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
 
 part 'topic_picture_event.dart';
-part '../topic_picture_state.dart';
+part 'topic_picture_state.dart';
 
 class TopicPictureBloc extends Bloc<TopicPictureEvent, TopicPictureState> {
   TopicPictureBloc() : super(TopicPictureInitial()) {
diff --git a/lib/practice/chosetopic/topicpicture/topic_picture_state.dart b/lib/practice/chosetopic/topicpicture/bloc/topic_picture_state.dart
index bbc67f5..f8d3a2b 100644
--- a/lib/practice/chosetopic/topicpicture/topic_picture_state.dart
+++ b/lib/practice/chosetopic/topicpicture/bloc/topic_picture_state.dart
@@ -1,4 +1,4 @@
-part of 'bloc/topic_picture_bloc.dart';
+part of 'topic_picture_bloc.dart';
 
 @immutable
 abstract class TopicPictureState {}
diff --git a/lib/practice/chosetopic/topicpicture/bloc/topic_picture_page.dart b/lib/practice/chosetopic/topicpicture/topic_picture_page.dart
index c2980dc..c2980dc 100644
--- a/lib/practice/chosetopic/topicpicture/bloc/topic_picture_page.dart
+++ b/lib/practice/chosetopic/topicpicture/topic_picture_page.dart