diff --git a/src/main/java/in/koreatech/koin/admin/abtest/repository/AccessHistoryRepository.java b/src/main/java/in/koreatech/koin/admin/abtest/repository/AccessHistoryRepository.java
index d56cc23d61..07defb9741 100644
--- a/src/main/java/in/koreatech/koin/admin/abtest/repository/AccessHistoryRepository.java
+++ b/src/main/java/in/koreatech/koin/admin/abtest/repository/AccessHistoryRepository.java
@@ -2,15 +2,21 @@
 
 import java.util.Optional;
 
+import org.springframework.data.jpa.repository.Lock;
+import org.springframework.data.jpa.repository.QueryHints;
 import org.springframework.data.repository.Repository;
 
 import in.koreatech.koin.admin.abtest.exception.AccessHistoryNotFoundException;
 import in.koreatech.koin.admin.abtest.model.AccessHistory;
+import jakarta.persistence.LockModeType;
+import jakarta.persistence.QueryHint;
 
 public interface AccessHistoryRepository extends Repository<AccessHistory, Integer> {
 
     AccessHistory save(AccessHistory accessHistory);
 
+    @Lock(LockModeType.PESSIMISTIC_WRITE)
+    @QueryHints({@QueryHint(name = "jakarta.persistence.lock.timeout", value = "3000")})
     Optional<AccessHistory> findById(Integer id);
 
     Optional<AccessHistory> findByDeviceId(Integer deviceId);