diff --git a/pom.xml b/pom.xml
index 8af61ee..4be9528 100644
--- a/pom.xml
+++ b/pom.xml
@@ -53,7 +53,7 @@
         <mysql.version>5.1.22</mysql.version>
         <logback.version>1.0.7</logback.version>
         <fastjson.version>1.1.32</fastjson.version>
-        <gson.version>2.8.5</gson.version>
+        <gson.version>2.8.9</gson.version>
         <jackson.version>1.4.3</jackson.version>
         <pool.version>1.5.5</pool.version>
         <commons-dbcp.version>1.4</commons-dbcp.version>