diff --git a/maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnYunxin.java b/maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnYunxin.java
index 6ef319f43..44eb01491 100644
--- a/maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnYunxin.java
+++ b/maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnYunxin.java
@@ -55,7 +55,7 @@ public class SmsOtpAuthnYunxin extends SmsOtpAuthn {
         /*
          * 参考计算CheckSum的java代码，在上述文档的参数列表中，有CheckSum的计算文档示例
          */
-        String checkSum = SmsOtpAuthnCheckSumBuilder
+        String checkSum = SmsOtpAuthnYunxinCheckSumBuilder
                 .getCheckSum(APP_SECRET, NONCE, curTime);
 
         // 设置请求的header
diff --git a/maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnCheckSumBuilder.java b/maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnYunxinCheckSumBuilder.java
similarity index 96%
rename from maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnCheckSumBuilder.java
rename to maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnYunxinCheckSumBuilder.java
index b8980824e..83d306d9f 100644
--- a/maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnCheckSumBuilder.java
+++ b/maxkey-core/src/main/java/org/maxkey/crypto/password/opt/impl/sms/netease/SmsOtpAuthnYunxinCheckSumBuilder.java
@@ -2,7 +2,7 @@ package org.maxkey.crypto.password.opt.impl.sms.netease;
 
 import java.security.MessageDigest;
 
-public class SmsOtpAuthnCheckSumBuilder {
+public class SmsOtpAuthnYunxinCheckSumBuilder {
     // 计算并获取CheckSum
     public static String getCheckSum(String appSecret, String nonce, String curTime) {
         return encode("sha1", appSecret + nonce + curTime);