diff --git a/WebSocket2/pom.xml b/WebSocket2/pom.xml
index ccfa888..c5314d5 100644
--- a/WebSocket2/pom.xml
+++ b/WebSocket2/pom.xml
@@ -17,7 +17,7 @@
 
     <properties>
         <java.version>1.8</java.version>
-        <fastjson.version>1.2.31</fastjson.version>
+        <fastjson.version>1.2.83</fastjson.version>
     </properties>
 
     <dependencyManagement>