diff --git a/CHANGELOG.md b/CHANGELOG.md
index be81b05..46da3e9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,18 @@
 ## ChangeLog - 阿里云附件存储
 ____________________
 
+### 版本号: 3.4.1
+
+修正日期：2022-09-25
+
+1. 移除图片服务「自定义分隔符」中默认的 `@` #107
+
+修正日期：2022-09-25
+
+1. 升级 aliyun-oss-php-sdk
+2. 移除 plugin-update-checker
+3. 移除对 PHPMailer 的依赖
+
 ### 版本号: 3.3.0
 
 修正日期：2021-11-24
diff --git a/aliyun-oss.php b/aliyun-oss.php
index c12a834..ba6a08f 100644
--- a/aliyun-oss.php
+++ b/aliyun-oss.php
@@ -4,7 +4,7 @@
  * Description: 使用阿里云 OSS 作为附件的存储空间。 This is a plugin that used Aliyun OSS for attachments remote saving.
  * Author: Ivan Chou
  * Author URI: https://yii.im/
- * Version: 3.4.0
+ * Version: 3.4.1
  * Updated_at: 2022-09-25
  */
 
diff --git a/src/Config.php b/src/Config.php
index d1d1762..4d39511 100644
--- a/src/Config.php
+++ b/src/Config.php
@@ -74,7 +74,7 @@ public static function init($plugin_path = "")
         }
 
         if (!empty($options['custom_separator'])) {
-            self::$customSeparator = "@{$options['custom_separator']}";
+            self::$customSeparator = "{$options['custom_separator']}";
         }
 
         $wp_upload_dir = wp_upload_dir();