diff --git a/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaReliabilityUpdateHistoryRepositoryTest.java b/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaReliabilityUpdateHistoryRepositoryTest.java
index b498d7e6f..3e365aba4 100644
--- a/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaReliabilityUpdateHistoryRepositoryTest.java
+++ b/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaReliabilityUpdateHistoryRepositoryTest.java
@@ -3,8 +3,6 @@
 import com.ddang.ddang.configuration.JpaConfiguration;
 import com.ddang.ddang.configuration.QuerydslConfiguration;
 import com.ddang.ddang.user.domain.ReliabilityUpdateHistory;
-import jakarta.persistence.EntityManager;
-import jakarta.persistence.PersistenceContext;
 import org.junit.jupiter.api.DisplayNameGeneration;
 import org.junit.jupiter.api.DisplayNameGenerator;
 import org.junit.jupiter.api.Test;
@@ -23,9 +21,6 @@
 @SuppressWarnings("NonAsciiCharacters")
 class JpaReliabilityUpdateHistoryRepositoryTest {
 
-    @PersistenceContext
-    EntityManager em;
-
     @Autowired
     JpaReliabilityUpdateHistoryRepository reliabilityUpdateHistoryRepository;
 
@@ -37,9 +32,6 @@ class JpaReliabilityUpdateHistoryRepositoryTest {
         // when
         final ReliabilityUpdateHistory actual = reliabilityUpdateHistoryRepository.save(reliabilityUpdateHistory);
 
-        em.flush();
-        em.clear();
-
         // then
         assertThat(actual.getId()).isPositive();
     }
@@ -62,9 +54,6 @@ class JpaReliabilityUpdateHistoryRepositoryTest {
 
         reliabilityUpdateHistoryRepository.saveAll(List.of(history1, history2, history3));
 
-        em.flush();
-        em.clear();
-
         // when
         final Optional<ReliabilityUpdateHistory> actual = reliabilityUpdateHistoryRepository.findFirstByOrderByIdDesc();
 
diff --git a/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaUserReliabilityRepositoryTest.java b/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaUserReliabilityRepositoryTest.java
index 8cf46db22..ba2f5aae1 100644
--- a/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaUserReliabilityRepositoryTest.java
+++ b/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaUserReliabilityRepositoryTest.java
@@ -4,8 +4,6 @@
 import com.ddang.ddang.configuration.QuerydslConfiguration;
 import com.ddang.ddang.user.domain.UserReliability;
 import com.ddang.ddang.user.infrastructure.persistence.fixture.JpaUserReliabilityRepositoryFixture;
-import jakarta.persistence.EntityManager;
-import jakarta.persistence.PersistenceContext;
 import org.junit.jupiter.api.DisplayNameGeneration;
 import org.junit.jupiter.api.DisplayNameGenerator;
 import org.junit.jupiter.api.Test;
@@ -23,9 +21,6 @@
 @SuppressWarnings("NonAsciiCharacters")
 class JpaUserReliabilityRepositoryTest extends JpaUserReliabilityRepositoryFixture {
 
-    @PersistenceContext
-    EntityManager em;
-
     @Autowired
     JpaUserReliabilityRepository userReliabilityRepository;
 
@@ -34,9 +29,6 @@ class JpaUserReliabilityRepositoryTest extends JpaUserReliabilityRepositoryFixtu
         // when
         UserReliability actual = userReliabilityRepository.save(저장하기_전_사용자_신뢰도_엔티티);
 
-        em.flush();
-        em.clear();
-
         // then
         assertThat(actual.getId()).isPositive();
     }
diff --git a/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaUserRepositoryTest.java b/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaUserRepositoryTest.java
index bdf338989..cb3a10d56 100644
--- a/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaUserRepositoryTest.java
+++ b/backend/ddang/src/test/java/com/ddang/ddang/user/infrastructure/persistence/JpaUserRepositoryTest.java
@@ -5,8 +5,6 @@
 import com.ddang.ddang.user.domain.Reliability;
 import com.ddang.ddang.user.domain.User;
 import com.ddang.ddang.user.infrastructure.persistence.fixture.JpaUserRepositoryFixture;
-import jakarta.persistence.EntityManager;
-import jakarta.persistence.PersistenceContext;
 import org.junit.jupiter.api.DisplayNameGeneration;
 import org.junit.jupiter.api.DisplayNameGenerator;
 import org.junit.jupiter.api.Test;
@@ -24,9 +22,6 @@
 @SuppressWarnings("NonAsciiCharacters")
 class JpaUserRepositoryTest extends JpaUserRepositoryFixture {
 
-    @PersistenceContext
-    EntityManager em;
-
     @Autowired
     JpaUserRepository userRepository;
 
@@ -44,9 +39,6 @@ class JpaUserRepositoryTest extends JpaUserRepositoryFixture {
         final User actual = userRepository.save(user);
 
         // then
-        em.flush();
-        em.clear();
-
         assertThat(actual.getId()).isPositive();
     }