diff --git a/contract-java-demo/pom.xml b/contract-java-demo/pom.xml
index 6ffc96b..ff9a8d5 100644
--- a/contract-java-demo/pom.xml
+++ b/contract-java-demo/pom.xml
@@ -39,7 +39,7 @@
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>fastjson</artifactId>
-                <version>1.2.37</version>
+                <version>1.2.83</version>
             </dependency>
             <dependency>
                 <groupId>org.apache.httpcomponents</groupId>