diff --git a/dictation_server/src/constants/index.ts b/dictation_server/src/constants/index.ts
index 4c63064..da502d7 100644
--- a/dictation_server/src/constants/index.ts
+++ b/dictation_server/src/constants/index.ts
@@ -301,10 +301,3 @@ export const USER_AUDIO_FORMAT = 'DS2(QP)';
  * @const {string[]}
  */
 export const NODE_ENV_TEST = 'test';
-
-/**
- * SQLのlockOptionの種類
- */
-export const DB_LOCK_MODE = {
-  PESSIMISTIC_WRITE: 'pessimistic_write',
-};
diff --git a/dictation_server/src/repositories/licenses/licenses.repository.service.ts b/dictation_server/src/repositories/licenses/licenses.repository.service.ts
index 2004be3..9f9cb85 100644
--- a/dictation_server/src/repositories/licenses/licenses.repository.service.ts
+++ b/dictation_server/src/repositories/licenses/licenses.repository.service.ts
@@ -9,7 +9,6 @@ import {
 } from './entity/license.entity';
 import {
   CARD_LICENSE_LENGTH,
-  DB_LOCK_MODE,
   LICENSE_ALLOCATED_STATUS,
   LICENSE_ISSUE_STATUS,
   LICENSE_TYPE,
@@ -417,20 +416,16 @@ export class LicensesRepositoryService {
       const licenseOrderRepo = entityManager.getRepository(LicenseOrder);
       const licenseRepo = entityManager.getRepository(License);
 
-      let lockOption = {};
-      // テスト環境の場合は悲観的ロックを行わない
-      if (process.env.NODE_ENV !== NODE_ENV_TEST) {
-        lockOption = { mode: DB_LOCK_MODE.PESSIMISTIC_WRITE };
-      }
-
       const issuingOrder = await licenseOrderRepo.findOne({
         where: {
           from_account_id: orderedAccountId,
           po_number: poNumber,
         },
         comment: `${context.getTrackingId()}_${new Date().toUTCString()}`,
-
-        ...lockOption,
+        // テスト環境の場合はロックを行わない(sqliteがlockに対応していないため)
+        ...(process.env.NODE_ENV !== NODE_ENV_TEST
+          ? { lock: { mode: 'pessimistic_write' } }
+          : {}),
       });
       if (!issuingOrder) {
         // 注文が存在しない場合、エラー