diff --git a/composer.json b/composer.json
index 843f166..16a9081 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
         "topthink/think-view": "^2.0",
         "topthink/think-captcha": "^3.0",
         "topthink/think-filesystem": "^2.0",
-        "aliyuncs/oss-sdk-php": "^2.6",
+        "aliyuncs/oss-sdk-php": "^2.7.2",
         "qcloud/cos-sdk-v5": "^2.6",
         "jianyan74/php-excel": "^1.0.2",
         "doctrine/annotations": "^2.0.0",