diff --git a/jseckill-backend/pom.xml b/jseckill-backend/pom.xml
index d30373e..7a86f6a 100644
--- a/jseckill-backend/pom.xml
+++ b/jseckill-backend/pom.xml
@@ -51,7 +51,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.54</version>
+            <version>1.2.83</version>
         </dependency>
         <dependency>
             <groupId>log4j</groupId>