diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..6a18d445
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+demo/** linguist-documentation=false
+demo/** linguist-vendored=false
\ No newline at end of file
diff --git a/src/main/java/com/thirdparty/ticketing/domain/ticket/service/proxy/PessimisticReservationServiceProxy.java b/src/main/java/com/thirdparty/ticketing/domain/ticket/service/proxy/PessimisticReservationServiceProxy.java
index 626f6b14..aa80105f 100644
--- a/src/main/java/com/thirdparty/ticketing/domain/ticket/service/proxy/PessimisticReservationServiceProxy.java
+++ b/src/main/java/com/thirdparty/ticketing/domain/ticket/service/proxy/PessimisticReservationServiceProxy.java
@@ -2,7 +2,7 @@
 
 import jakarta.persistence.LockTimeoutException;
 
-import org.hibernate.PessimisticLockException;
+import org.springframework.dao.PessimisticLockingFailureException;
 
 import com.thirdparty.ticketing.domain.common.ErrorCode;
 import com.thirdparty.ticketing.domain.common.TicketingException;
@@ -22,7 +22,7 @@ public class PessimisticReservationServiceProxy implements ReservationServicePro
     public void selectSeat(String memberEmail, SeatSelectionRequest seatSelectionRequest) {
         try {
             reservationTransactionService.selectSeat(memberEmail, seatSelectionRequest);
-        } catch (PessimisticLockException | LockTimeoutException e) {
+        } catch (PessimisticLockingFailureException | LockTimeoutException e) {
             log.error(e.getMessage(), e);
             throw new TicketingException(ErrorCode.NOT_SELECTABLE_SEAT);
         }
@@ -32,7 +32,7 @@ public void selectSeat(String memberEmail, SeatSelectionRequest seatSelectionReq
     public void reservationTicket(String memberEmail, TicketPaymentRequest ticketPaymentRequest) {
         try {
             reservationTransactionService.reservationTicket(memberEmail, ticketPaymentRequest);
-        } catch (PessimisticLockException | LockTimeoutException e) {
+        } catch (PessimisticLockingFailureException | LockTimeoutException e) {
             log.error(e.getMessage(), e);
             throw new TicketingException(ErrorCode.NOT_SELECTABLE_SEAT);
         }
diff --git a/src/main/java/com/thirdparty/ticketing/global/config/ReservationServiceContainer.java b/src/main/java/com/thirdparty/ticketing/global/config/ReservationServiceContainer.java
index f5d7eec6..8c6f974f 100644
--- a/src/main/java/com/thirdparty/ticketing/global/config/ReservationServiceContainer.java
+++ b/src/main/java/com/thirdparty/ticketing/global/config/ReservationServiceContainer.java
@@ -39,7 +39,6 @@ public ReservationService lettuceReservationServiceProxy(
                 lettuceRepository, cacheReservationTransactionService);
     }
 
-    @Primary
     @Bean
     ReservationService optimisticReservationServiceProxy(
             @Qualifier("persistenceOptimisticReservationService")
@@ -47,6 +46,7 @@ ReservationService optimisticReservationServiceProxy(
         return new OptimisticReservationServiceProxy(persistenceOptimisticReservationService);
     }
 
+    @Primary
     @Bean
     ReservationService pessimisticReservationServiceProxy(
             @Qualifier("persistencePessimisticReservationService")