diff --git a/src/main/java/com/thirdparty/ticketing/domain/seat/Seat.java b/src/main/java/com/thirdparty/ticketing/domain/seat/Seat.java
index 363d6faf..67f1ae66 100644
--- a/src/main/java/com/thirdparty/ticketing/domain/seat/Seat.java
+++ b/src/main/java/com/thirdparty/ticketing/domain/seat/Seat.java
@@ -28,7 +28,7 @@ public class Seat extends BaseEntity {
     private Zone zone;
 
     @ManyToOne(fetch = FetchType.LAZY)
-    @JoinColumn(name = "seat_Grade", nullable = false)
+    @JoinColumn(name = "seat_grade_id", nullable = false)
     private SeatGrade seatGrade;
 
     @ManyToOne(fetch = FetchType.LAZY)
diff --git a/src/main/java/com/thirdparty/ticketing/domain/seat/SeatGrade.java b/src/main/java/com/thirdparty/ticketing/domain/seat/SeatGrade.java
index 54c19b2c..58f34d36 100644
--- a/src/main/java/com/thirdparty/ticketing/domain/seat/SeatGrade.java
+++ b/src/main/java/com/thirdparty/ticketing/domain/seat/SeatGrade.java
@@ -2,6 +2,7 @@
 
 import jakarta.persistence.*;
 
+import com.thirdparty.ticketing.domain.BaseEntity;
 import com.thirdparty.ticketing.domain.performance.Performance;
 
 import lombok.*;
@@ -12,7 +13,7 @@
 @Builder
 @AllArgsConstructor
 @NoArgsConstructor(access = AccessLevel.PROTECTED)
-public class SeatGrade {
+public class SeatGrade extends BaseEntity {
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long seatGradeId;