diff --git a/sdk/pom.xml b/sdk/pom.xml
index a4ae77c..3baad1c 100644
--- a/sdk/pom.xml
+++ b/sdk/pom.xml
@@ -164,7 +164,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.6.2</version>
+            <version>2.8.9</version>
         </dependency>
         <dependency>
             <groupId>com.qiniu</groupId>