diff --git a/package.json b/package.json
index e9d761b..983ef10 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@kdwnil/translator-utils",
     "private": true,
-    "version": "0.0.2-alpha.25",
+    "version": "0.0.2-alpha.26",
     "description": "translate utils",
     "homepage": "https://github.com/BANKA2017/translator-utils",
     "bugs": {
diff --git a/packages/translator-utils-axios-helper/index.js b/packages/translator-utils-axios-helper/index.js
index c9c1377..9c0e866 100644
--- a/packages/translator-utils-axios-helper/index.js
+++ b/packages/translator-utils-axios-helper/index.js
@@ -5,7 +5,7 @@ class AxiosRequest {
             options.timeout = 30000
         }
 
-        const validPostRequest = (options?.method ?? '').toLowerCase() === 'post' && postData
+        const validPostRequest = (options?.method || '').toLowerCase() === 'post' && postData
         if (!options.headers) {
             options.headers = {}
         }
diff --git a/packages/translator-utils-axios-helper/index.node.js b/packages/translator-utils-axios-helper/index.node.js
index 938168d..1f59b26 100644
--- a/packages/translator-utils-axios-helper/index.node.js
+++ b/packages/translator-utils-axios-helper/index.node.js
@@ -4,7 +4,7 @@ import https from 'node:https'
 
 class AxiosRequest {
     requestHandle(url, postData, options = {}) {
-        const HTTPS_PROXY = process.env.https_proxy ?? process.env.HTTPS_PROXY ?? ''
+        const HTTPS_PROXY = process.env.https_proxy || process.env.HTTPS_PROXY || ''
 
         if (HTTPS_PROXY && HttpsProxyAgent) {
             options.agent = new HttpsProxyAgent({ proxy: HTTPS_PROXY })
@@ -19,7 +19,7 @@ class AxiosRequest {
             options.headers['user-agent'] = defaultUA
         }
 
-        const validPostRequest = (options?.method ?? '').toLowerCase() === 'post' && postData
+        const validPostRequest = (options?.method || '').toLowerCase() === 'post' && postData
         if (!options.headers['content-type']) {
             options.headers['content-type'] = 'application/x-www-form-urlencoded'
         }
diff --git a/src/source/deepl.ts b/src/source/deepl.ts
index 86974ce..63f2917 100644
--- a/src/source/deepl.ts
+++ b/src/source/deepl.ts
@@ -1,4 +1,4 @@
-import { TranslatorModuleFunction } from '../types.js'
+import type { TranslatorModuleFunction } from '../types.js'
 import { SupportedLanguage } from '../misc.js'
 import axiosFetch from 'translator-utils-axios-helper'
 import cryptoHandle from 'translator-utils-crypto'
diff --git a/src/source/google.ts b/src/source/google.ts
index 95d5e72..2bb3d17 100644
--- a/src/source/google.ts
+++ b/src/source/google.ts
@@ -1,4 +1,4 @@
-import { TTSModuleFunction, TranslatorModuleFunction } from '../types.js'
+import type { TTSModuleFunction, TranslatorModuleFunction } from '../types.js'
 import { SupportedLanguage } from '../misc.js'
 import axiosFetch from 'translator-utils-axios-helper'
 import { GOOGLE_LANGUAGE } from '../language.js'
diff --git a/src/source/sogou.ts b/src/source/sogou.ts
index ff28347..2eb7f99 100644
--- a/src/source/sogou.ts
+++ b/src/source/sogou.ts
@@ -1,4 +1,4 @@
-import { TTSModuleFunction, TranslatorModuleFunction } from '../types.js'
+import type { TTSModuleFunction, TranslatorModuleFunction } from '../types.js'
 import { SupportedLanguage, buffer_to_base64 } from '../misc.js'
 import axiosFetch from 'translator-utils-axios-helper'
 import cryptoHandle from 'translator-utils-crypto'
diff --git a/src/source/yandex.ts b/src/source/yandex.ts
index 5f02487..3abf852 100644
--- a/src/source/yandex.ts
+++ b/src/source/yandex.ts
@@ -1,4 +1,4 @@
-import { TranslatorModuleFunction } from '../types.js'
+import type { TranslatorModuleFunction } from '../types.js'
 import { SupportedLanguage, generateUUID } from '../misc.js'
 import axiosFetch from 'translator-utils-axios-helper'
 import { YANDEX_LANGUAGE } from '../language.js'