diff --git a/Pay-Demo/pom.xml b/Pay-Demo/pom.xml
index c87d8e1..bb0a37a 100644
--- a/Pay-Demo/pom.xml
+++ b/Pay-Demo/pom.xml
@@ -59,7 +59,7 @@
     <dependency>
       <groupId>com.alibaba</groupId>
       <artifactId>fastjson</artifactId>
-      <version>1.2.14</version>
+      <version>1.2.83</version>
     </dependency>
     <!--fastjson end-->
     <!--logger start-->