diff --git a/src/main/java/life/mosu/mosuserver/infra/persistence/jpa/ApplicationJpaRepositoryImpl.java b/src/main/java/life/mosu/mosuserver/infra/persistence/jpa/ApplicationJpaRepositoryImpl.java
index a8d484de..d2d1e0f5 100644
--- a/src/main/java/life/mosu/mosuserver/infra/persistence/jpa/ApplicationJpaRepositoryImpl.java
+++ b/src/main/java/life/mosu/mosuserver/infra/persistence/jpa/ApplicationJpaRepositoryImpl.java
@@ -26,7 +26,7 @@ public void batchDeleteAllWithExamApplications(List<ApplicationJpaEntity> entiti
                 .map(ApplicationJpaEntity::getId)
                 .toList();
 
-        String deleteExamApplicationSql = "DELETE FROM exam_application WHERE application_id IN (:applicationIds)";
+        String deleteExamApplicationSql = "UPDATE exam_application SET deleted = true WHERE application_id IN (:applicationIds)";
         namedParameterJdbcTemplate.update(deleteExamApplicationSql,
                 new MapSqlParameterSource("applicationIds", applicationIds));