diff --git a/back-end/pom.xml b/back-end/pom.xml
index 8971f124..f73b589c 100644
--- a/back-end/pom.xml
+++ b/back-end/pom.xml
@@ -54,7 +54,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.39</version>
+            <version>1.2.83</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->