diff --git a/src/main/java/in/koreatech/koin/domain/timetableV2/dto/request/TimetableLectureCreateRequest.java b/src/main/java/in/koreatech/koin/domain/timetableV2/dto/request/TimetableLectureCreateRequest.java
index b1796cb49..a7c7f7067 100644
--- a/src/main/java/in/koreatech/koin/domain/timetableV2/dto/request/TimetableLectureCreateRequest.java
+++ b/src/main/java/in/koreatech/koin/domain/timetableV2/dto/request/TimetableLectureCreateRequest.java
@@ -6,7 +6,6 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
-import java.util.stream.Collectors;
 
 import com.fasterxml.jackson.databind.PropertyNamingStrategies.SnakeCaseStrategy;
 import com.fasterxml.jackson.databind.annotation.JsonNaming;