diff --git a/pom.xml b/pom.xml
index 8015be6..1c79147 100644
--- a/pom.xml
+++ b/pom.xml
@@ -18,7 +18,7 @@
     <com.google.guava.version>17.0</com.google.guava.version>
     <druid.version>1.1.12</druid.version>
     <fastjson.version>1.2.54</fastjson.version>
-    <gson.version>2.8.2</gson.version>
+    <gson.version>2.8.9</gson.version>
     <java-websocket.version>1.5.0</java-websocket.version>
     <java.version>1.8</java.version>
     <jmockit.version>1.48</jmockit.version>