diff --git a/src/domain/defaultEngine/latetDefaultEngine.ts b/src/domain/defaultEngine/latetDefaultEngine.ts
index 6c6637e959..62c95534c8 100644
--- a/src/domain/defaultEngine/latetDefaultEngine.ts
+++ b/src/domain/defaultEngine/latetDefaultEngine.ts
@@ -4,47 +4,46 @@
 
 import { z } from "zod";
 
-/** パッケージ（vvppやvvppp１ファイル）ごとのスキーマ */
-const defaultEnginePackageSchema = z.object({
-  url: z.string(),
-  name: z.string(),
-  size: z.number(),
-  hash: z.string().optional(),
-});
-
-/** デバイスごとのスキーマ */
-const defaultEngineDeviceSchema = z.object({
+/** パッケージ情報のスキーマ */
+const engineVariantSchema = z.object({
   version: z.string(),
-  packages: z.array(defaultEnginePackageSchema),
+  packages: z
+    .object({
+      url: z.string(),
+      name: z.string(),
+      size: z.number(),
+      hash: z.string().optional(),
+    })
+    .array(),
 });
 
-/** デフォルトエンジンの更新情報のスキーマ */
-const defaultEngineInfosSchema = z.object({
+/** デフォルトエンジンの最新情報のスキーマ */
+const latestDefaultEngineInfoSchema = z.object({
   formatVersion: z.number(),
   windows: z.object({
     x64: z.object({
-      CPU: defaultEngineDeviceSchema,
-      "GPU/CPU": defaultEngineDeviceSchema,
+      CPU: engineVariantSchema,
+      "GPU/CPU": engineVariantSchema,
     }),
   }),
   macos: z.object({
     x64: z.object({
-      CPU: defaultEngineDeviceSchema,
+      CPU: engineVariantSchema,
     }),
     arm64: z.object({
-      CPU: defaultEngineDeviceSchema,
+      CPU: engineVariantSchema,
     }),
   }),
   linux: z.object({
     x64: z.object({
-      CPU: defaultEngineDeviceSchema,
-      "GPU/CPU": defaultEngineDeviceSchema,
+      CPU: engineVariantSchema,
+      "GPU/CPU": engineVariantSchema,
     }),
   }),
 });
 
-/** デフォルトエンジンの更新情報を取得する */
-export const fetchDefaultEngineInfos = async (url: string) => {
+/** デフォルトエンジンの最新情報を取得する */
+export const fetchLatestDefaultEngineInfo = async (url: string) => {
   const response = await fetch(url);
-  return defaultEngineInfosSchema.parse(await response.json());
+  return latestDefaultEngineInfoSchema.parse(await response.json());
 };
diff --git a/tests/unit/domain/defaultEngine/defaultEngine.node.spec.ts b/tests/unit/domain/defaultEngine/defaultEngine.node.spec.ts
deleted file mode 100644
index 0e49596d76..0000000000
--- a/tests/unit/domain/defaultEngine/defaultEngine.node.spec.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-// テスト用のファイルを読み込むのでNode環境で実行する
-
-import path from "path";
-import fs from "fs";
-import { fetchDefaultEngineInfos } from "@/domain/defaultEngine/latetDefaultEngine";
-
-const currentDir = "tests/unit/domain/defaultEngine";
-
-test("fetchDefaultEngineInfos", async () => {
-  // テスト用のjsonファイルでfetchをモックする
-  // 元ファイルは https://raw.githubusercontent.com/VOICEVOX/voicevox_blog/master/src/generateLatestDefaultEngineInfos.ts
-  const p = path.resolve(currentDir, "latestDefaultEngineInfos.json");
-  const json = fs.readFileSync(p, "utf-8");
-  const spy = vi.spyOn(global, "fetch").mockResolvedValue(new Response(json));
-
-  // 読み込めることを確認
-  const infos = await fetchDefaultEngineInfos("https://example.com/");
-  expect(infos.formatVersion).toBe(1);
-
-  spy.mockRestore();
-});
diff --git a/tests/unit/domain/defaultEngine/latetDefaultEngine.spec.ts b/tests/unit/domain/defaultEngine/latetDefaultEngine.spec.ts
new file mode 100644
index 0000000000..d3b09e4d1b
--- /dev/null
+++ b/tests/unit/domain/defaultEngine/latetDefaultEngine.spec.ts
@@ -0,0 +1,16 @@
+import latestDefaultEngineInfos from "./latestDefaultEngineInfos.json";
+import { fetchLatestDefaultEngineInfo } from "@/domain/defaultEngine/latetDefaultEngine";
+
+test("fetchLatestDefaultEngineInfo", async () => {
+  // テスト用のjsonファイルでfetchをモックする
+  // 元ファイルは https://raw.githubusercontent.com/VOICEVOX/voicevox_blog/master/src/generateLatestDefaultEngineInfos.ts
+  const spy = vi
+    .spyOn(global, "fetch")
+    .mockResolvedValue(new Response(JSON.stringify(latestDefaultEngineInfos)));
+
+  // 読み込めることを確認
+  const infos = await fetchLatestDefaultEngineInfo("https://example.com/");
+  expect(infos.formatVersion).toBe(1);
+
+  spy.mockRestore();
+});