diff --git a/src/const.ts b/src/const.ts
index 4506c87..91d5246 100644
--- a/src/const.ts
+++ b/src/const.ts
@@ -1,3 +1,3 @@
-export const pkgName = PKG_NAME;
-export const pkgVersion = PKG_VERSION;
+export const pkgName = process.env.PKG_NAME;
+export const pkgVersion = process.env.PKG_VERSION;
 export const officialLink = 'https://github.com/FrontEndDev-org/unplugin-react-pages';
diff --git a/src/dts/env.d.ts b/src/dts/env.d.ts
index f952fb9..0143881 100644
--- a/src/dts/env.d.ts
+++ b/src/dts/env.d.ts
@@ -1,8 +1,25 @@
+/**
+ * env.d.ts
+ * @ref https://nodejs.org/api/process.html#processenv
+ */
+
 namespace NodeJS {
   interface ProcessEnv {
     /**
      * @see https://nodejs.org/api/process.html#processenv
      */
-    NODE_ENV: 'development' | 'production' | 'test';
+    readonly NODE_ENV: 'development' | 'production' | 'test';
+
+    /**
+     * package name
+     * defined in vite.config.mts
+     */
+    readonly PKG_NAME: string;
+
+    /**
+     * package version
+     * defined in vite.config.mts
+     */
+    readonly PKG_VERSION: string;
   }
 }
diff --git a/src/dts/globals.d.ts b/src/dts/globals.d.ts
index bdd5715..2f66a75 100644
--- a/src/dts/globals.d.ts
+++ b/src/dts/globals.d.ts
@@ -1,15 +1,9 @@
-declare global {
-  /**
-   * package name
-   * defined in vite.config.mts
-   */
-  export const PKG_NAME: string;
+/**
+ * globals.d.ts
+ */
 
-  /**
-   * package version
-   * defined in vite.config.mts
-   */
-  export const PKG_VERSION: string;
+declare global {
+  //
 }
 
 export {};
diff --git a/test/const.test.ts b/test/const.test.ts
index 686c4b2..c21034f 100644
--- a/test/const.test.ts
+++ b/test/const.test.ts
@@ -1,6 +1,6 @@
 import { pkgName, pkgVersion } from '../src';
 
 it('pkg', () => {
-  expect(pkgName).toEqual(PKG_NAME);
-  expect(pkgVersion).toEqual(PKG_VERSION);
+  expect(pkgName).toEqual(process.env.PKG_NAME);
+  expect(pkgVersion).toEqual(process.env.PKG_VERSION);
 });
diff --git a/vite.config.mts b/vite.config.mts
index 648f66e..0d3e530 100644
--- a/vite.config.mts
+++ b/vite.config.mts
@@ -1,67 +1,71 @@
-import { externalizeDeps } from 'vite-plugin-externalize-deps';
-import dts from 'vite-plugin-dts';
-import { defineConfig } from 'vitest/config';
-import pkg from './package.json';
-
 /**
- * vite config
+ * @file vite.config.mts
  * @ref https://vitejs.dev/
  * vitest config
  * @ref https://vitest.dev/
  */
-export default defineConfig((config) => {
-  return {
-    plugins: [
-      externalizeDeps({
-        deps: true,
-        devDeps: true,
-        peerDeps: true,
-        optionalDeps: true,
-        nodeBuiltins: true,
-      }),
-      dts({
-        include: 'src',
-      }),
-    ],
-    define: {
-      PKG_NAME: JSON.stringify(config.mode === 'test' ? 'pkg-name-for-test' : pkg.name),
-      PKG_VERSION: JSON.stringify(config.mode === 'test' ? 'pkg-version-for-test' : pkg.version),
+
+import { externalizeDeps } from 'vite-plugin-externalize-deps';
+import dts from 'vite-plugin-dts';
+import { defineConfig } from 'vitest/config';
+import pkg from './package.json';
+
+export default defineConfig({
+  plugins: [
+    externalizeDeps({
+      deps: true,
+      devDeps: true,
+      peerDeps: true,
+      optionalDeps: true,
+      nodeBuiltins: true,
+    }),
+    dts({
+      include: 'src',
+    }),
+  ],
+  define: {
+    ['process.env.PKG_NAME']: JSON.stringify(pkg.name),
+    ['process.env.PKG_VERSION']: JSON.stringify(pkg.version),
+  },
+  build: {
+    minify: false,
+    sourcemap: true,
+    copyPublicDir: false,
+    reportCompressedSize: false,
+    lib: {
+      entry: {
+        index: 'src/index.ts',
+      },
     },
-    build: {
-      minify: false,
-      sourcemap: true,
-      copyPublicDir: false,
-      reportCompressedSize: false,
-      lib: {
-        entry: {
-          index: 'src/index.ts',
+    rollupOptions: {
+      output: [
+        {
+          format: 'esm',
+          entryFileNames: '[name].mjs',
+          chunkFileNames: '[name].mjs',
         },
-      },
-      rollupOptions: {
-        output: [
-          {
-            format: 'esm',
-            entryFileNames: '[name].mjs',
-            chunkFileNames: '[name].mjs',
-          },
-          {
-            format: 'cjs',
-            entryFileNames: '[name].cjs',
-            chunkFileNames: '[name].cjs',
-          },
-        ],
-      },
+        {
+          format: 'cjs',
+          entryFileNames: '[name].cjs',
+          chunkFileNames: '[name].cjs',
+        },
+      ],
     },
-    // optimizeDeps: {
-    //   exclude: ['fsevents'],
-    // },
-    test: {
-      globals: true,
-      coverage: {
-        all: true,
-        include: ['src/**/*.ts'],
-        reporter: ['lcov', 'text'],
-      },
+  },
+  // optimizeDeps: {
+  //   exclude: ['fsevents'],
+  // },
+  test: {
+    globals: true,
+    env: {
+      NODE_ENV: 'test',
+      PKG_NAME: 'pkg-name-for-test',
+      PKG_VERSION: 'pkg-version-for-test',
+    },
+    coverage: {
+      all: true,
+      include: ['src/**/*.ts'],
+      reporter: ['lcov', 'text'],
     },
-  };
+  },
 });