diff --git a/dictation_function/src/test/licenseAutoAllocation.spec.ts b/dictation_function/src/test/licenseAutoAllocation.spec.ts
index 170862a..d0bf9ef 100644
--- a/dictation_function/src/test/licenseAutoAllocation.spec.ts
+++ b/dictation_function/src/test/licenseAutoAllocation.spec.ts
@@ -282,13 +282,9 @@ describe("licenseAutoAllocation", () => {
   it("有効期限が指定日のライセンスが自動更新されること（リトライ用）", async () => {
     if (!source) fail();
     const context = new InvocationContext();
-    // 11/22の日付を作成
-    const dateSeptember22 = new Date();
-    dateSeptember22.setMonth(11);
-    dateSeptember22.setDate(22);
-    dateSeptember22.setHours(23, 59, 59);
-    const currentDateEndTime = new DateWithDayEndTime(dateSeptember22);
-
+    // 2023/11/22の日付を作成
+    const date1122 = new Date(2023, 10, 22, 23, 59, 59);
+    const currentDateEndTime = new DateWithDayEndTime(date1122);
     // アカウント
     const account1 = await makeTestAccount(
       source,
@@ -328,7 +324,7 @@ describe("licenseAutoAllocation", () => {
       auto_renew: false,
     });
 
-    // 割り当て済みで有効期限が12/31のライセンス
+    // 割り当て済みで有効期限が11/22のライセンス
     await createLicense(
       source,
       1,
@@ -389,10 +385,9 @@ describe("licenseAutoAllocation", () => {
       null,
       null
     );
-
     // 割り当て済みの更新対象ではないライセンス
     const nextDate = new Date();
-    nextDate.setDate(dateSeptember22.getDate() + 1);
+    nextDate.setDate(date1122.getDate() + 1);
     nextDate.setHours(23, 59, 59); // 時分秒を"23:59:59"に固定
     nextDate.setMilliseconds(0);
     await createLicense(
@@ -407,15 +402,13 @@ describe("licenseAutoAllocation", () => {
       null,
       null
     );
-
     // 有効期限が先の未割当ライセンスを作成
     // idが100のものは有効期限が当日なので自動割り当て対象外
     // idが101のものから割り当てられる
     for (let i = 0; i < 10; i++) {
-      const date = new Date();
-      date.setDate(dateSeptember22.getDate() + i);
-      date.setHours(23, 59, 59); // 時分秒を"23:59:59"に固定
-      date.setMilliseconds(0);
+      // 2023/11/22の日付を作成
+      const date = new Date(2023, 10, 22, 23, 59, 59);
+      date.setDate(date.getDate() + i);
       await createLicense(
         source,
         i + 100,
@@ -446,8 +439,7 @@ describe("licenseAutoAllocation", () => {
       null,
       null
     );
-
-    await licenseAutoAllocationProcessing(context, source, dateSeptember22);
+    await licenseAutoAllocationProcessing(context, source, date1122);
     const user1Allocated = await selectLicenseByAllocatedUser(source, user1.id);
     const user2Allocated = await selectLicenseByAllocatedUser(source, user2.id);
     const user3Allocated = await selectLicenseByAllocatedUser(source, user3.id);