diff --git a/packages/core/src/utils/util.version.js b/packages/core/src/utils/util.version.js
index 12a0b8f..265ef34 100644
--- a/packages/core/src/utils/util.version.js
+++ b/packages/core/src/utils/util.version.js
@@ -14,7 +14,7 @@ function parseVersion (version) {
  * @param log            日志对象
  * @returns {number} 比较线上版本号是否为更新的版本，大于0=是|0=相等|小于0=否|-999=出现异常，比较结果未知
  */
-export function isNewVersion (onlineVersion, currentVersion, log = console) {
+export function isNewVersion (onlineVersion, currentVersion, log = null) {
   if (onlineVersion === currentVersion) {
     return 0
   }
diff --git a/packages/mitmproxy/test/dnsTest.mjs b/packages/mitmproxy/test/dnsTest.mjs
index 1f177ad..9134fc2 100644
--- a/packages/mitmproxy/test/dnsTest.mjs
+++ b/packages/mitmproxy/test/dnsTest.mjs
@@ -111,6 +111,14 @@ console.log('\n--------------- test ForSNI ---------------\n')
 console.log(`===> test ForSNI: ${dnsProviders.ForSNI.dnsName}`, '\n\n')
 assert.strictEqual(dnsProviders.ForSNI, dnsProviders.safe360)
 
+const dnsProviders2 = dns.initDNS({
+  aliyun: {
+    server: 'udp://223.5.5.5',
+  },
+}, {})
+console.log(`===> test ForSNI2: ${dnsProviders2.ForSNI.dnsName}`, '\n\n')
+assert.strictEqual(dnsProviders2.ForSNI, dnsProviders2.PreSet) // 未配置forSNI的DNS时，默认使用PreSet作为ForSNI
+
 
 console.log('\n--------------- test PreSet ---------------\n')
 ip = await dnsProviders.PreSet.lookup(hasPresetHostname)