diff --git a/sandbox/pom.xml b/sandbox/pom.xml
index 6a24467..0867a32 100644
--- a/sandbox/pom.xml
+++ b/sandbox/pom.xml
@@ -19,7 +19,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.55</version>
+            <version>1.2.83</version>
         </dependency>
 
         <dependency>