diff --git a/src/main/java/com/jobdri/jobdri_api/domain/payment/service/PaymentService.java b/src/main/java/com/jobdri/jobdri_api/domain/payment/service/PaymentService.java
index c4307336..603e2e04 100644
--- a/src/main/java/com/jobdri/jobdri_api/domain/payment/service/PaymentService.java
+++ b/src/main/java/com/jobdri/jobdri_api/domain/payment/service/PaymentService.java
@@ -46,6 +46,7 @@ public class PaymentService {
 
     private static final String EXPECTED_PAYMENT_METHOD = "간편결제";
     private static final String EXPECTED_EASY_PAY_PROVIDER = "토스페이";
+    private static final String ORDER_ID_PREFIX = "jobdri-";
 
     private final UserService userService;
     private final PaymentRepository paymentRepository;
@@ -78,7 +79,7 @@ public PaymentPrepareResponse prepare(User user, PaymentPrepareRequest request)
         if (provider == PaymentProviderType.PORTONE) {
             return preparePortOne(validatedUser, plan);
         }
-        String orderId = "jobdri-" + UUID.randomUUID();
+        String orderId = generateOrderId();
         Payment payment = paymentTransactionService.createPendingPayment(
                 validatedUser.getId(),
                 plan,
@@ -131,7 +132,7 @@ public PaymentPrepareResponse prepare(User user, PaymentPrepareRequest request)
 
     private PaymentPrepareResponse preparePortOne(User validatedUser, CreditPlan plan) {
         PortOnePrepareData prepareData = portOneClient.prepareData();
-        String orderId = "jobdri-" + UUID.randomUUID();
+        String orderId = generateOrderId();
         Payment payment = paymentTransactionService.createPortOnePendingPayment(
                 validatedUser.getId(),
                 plan,
@@ -153,6 +154,10 @@ private PaymentPrepareResponse preparePortOne(User validatedUser, CreditPlan pla
         );
     }
 
+    private String generateOrderId() {
+        return ORDER_ID_PREFIX + UUID.randomUUID().toString().replace("-", "");
+    }
+
     @Transactional(propagation = Propagation.NOT_SUPPORTED)
     public PaymentConfirmResponse confirm(User user, PaymentConfirmRequest request) {
         User validatedUser = userService.validateUser(user);
diff --git a/src/test/java/com/jobdri/jobdri_api/domain/payment/service/PaymentServiceTest.java b/src/test/java/com/jobdri/jobdri_api/domain/payment/service/PaymentServiceTest.java
index 5f4666d3..53ee9286 100644
--- a/src/test/java/com/jobdri/jobdri_api/domain/payment/service/PaymentServiceTest.java
+++ b/src/test/java/com/jobdri/jobdri_api/domain/payment/service/PaymentServiceTest.java
@@ -56,6 +56,7 @@
 class PaymentServiceTest {
 
     private static final String TEST_PORTONE_WEBHOOK_SECRET = "whsec_dGVzdC13ZWJob29rLXNlY3JldA==";
+    private static final String ORDER_ID_PATTERN = "^jobdri-[0-9a-f]{32}$";
 
     @Autowired
     private PaymentService paymentService;
@@ -104,7 +105,7 @@ void prepare() {
 
         PaymentPrepareResponse response = paymentService.prepare(user, new PaymentPrepareRequest("FIVE_TIMES"));
 
-        assertThat(response.orderId()).startsWith("jobdri-");
+        assertThat(response.orderId()).matches(ORDER_ID_PATTERN);
         assertThat(response.orderName()).isEqualTo("JobDri 크레딧 5회권");
         assertThat(response.amount()).isEqualTo(11500);
         assertThat(response.creditAmount()).isEqualTo(5);
@@ -643,6 +644,7 @@ void preparePortOneReturnsPublicSdkParameters() {
         );
 
         assertThat(response.provider()).isEqualTo(PaymentProviderType.PORTONE);
+        assertThat(response.orderId()).matches(ORDER_ID_PATTERN);
         assertThat(response.portOneStoreId()).isEqualTo("store-test");
         assertThat(response.portOneChannelKey()).isEqualTo("channel-key-test");
         assertThat(response.currency()).isEqualTo("KRW");