diff --git a/util_leetcode/pom.xml b/util_leetcode/pom.xml
index 3c4b1e4..57b813e 100644
--- a/util_leetcode/pom.xml
+++ b/util_leetcode/pom.xml
@@ -30,7 +30,7 @@
     <dependency>
       <groupId>com.alibaba</groupId>
       <artifactId>fastjson</artifactId>
-      <version>1.2.68</version>
+      <version>1.2.83</version>
     </dependency>
   </dependencies>