diff --git a/backend/src/main/java/com/twtw/backend/domain/group/entity/GroupMember.java b/backend/src/main/java/com/twtw/backend/domain/group/entity/GroupMember.java
index dbd9db36..c0c8dbed 100644
--- a/backend/src/main/java/com/twtw/backend/domain/group/entity/GroupMember.java
+++ b/backend/src/main/java/com/twtw/backend/domain/group/entity/GroupMember.java
@@ -30,11 +30,11 @@ public class GroupMember implements Auditable {
     @Column(columnDefinition = "BINARY(16)")
     private UUID id = UlidCreator.getMonotonicUlid().toUuid();
 
-    @ManyToOne
+    @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "group_id")
     private Group group;
 
-    @ManyToOne
+    @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "member_id")
     private Member member;
 
diff --git a/backend/src/main/java/com/twtw/backend/domain/notification/entity/Notification.java b/backend/src/main/java/com/twtw/backend/domain/notification/entity/Notification.java
index ff18219e..5c3fd2e0 100644
--- a/backend/src/main/java/com/twtw/backend/domain/notification/entity/Notification.java
+++ b/backend/src/main/java/com/twtw/backend/domain/notification/entity/Notification.java
@@ -28,7 +28,7 @@ public class Notification implements Auditable {
 
     @Id
     @Column(columnDefinition = "BINARY(16)")
-    private final UUID id = UlidCreator.getMonotonicUlid().toUuid();
+    private UUID id = UlidCreator.getMonotonicUlid().toUuid();
 
     @Column(nullable = false)
     private String title;