diff --git a/composer.json b/composer.json
index aef54f2a3..dffbf02d4 100644
--- a/composer.json
+++ b/composer.json
@@ -2,6 +2,7 @@
     "require": {
         "rodneyrehm/plist": "^2.0",
         "guzzlehttp/guzzle": "~6.0",
-        "obs/esdk-obs-php": "3.22.6"
+        "obs/esdk-obs-php": "3.22.6",
+        "qcloud/cos-sdk-v5": ">=2.0"
     }
 }