diff --git a/blade-starter-oss/pom.xml b/blade-starter-oss/pom.xml
index 95ff265..a2eb7e8 100644
--- a/blade-starter-oss/pom.xml
+++ b/blade-starter-oss/pom.xml
@@ -45,7 +45,7 @@
         <dependency>
             <groupId>com.qcloud</groupId>
             <artifactId>cos_api</artifactId>
-            <version>5.6.251</version>
+            <version>5.6.255</version>
         </dependency>
     </dependencies>