diff --git a/plugins/cos/build.gradle.kts b/plugins/cos/build.gradle.kts
index 904f613..4904097 100644
--- a/plugins/cos/build.gradle.kts
+++ b/plugins/cos/build.gradle.kts
@@ -8,7 +8,7 @@ project.version = "0.0.4"
 
 dependencies {
     testImplementation(kotlin("test"))
-    implementation("com.qcloud:cos_api:5.6.255.1")
+    implementation("com.qcloud:cos_api:5.6.257")
     compileOnly(project(":"))
 }