diff --git a/chapter-9/pom.xml b/chapter-9/pom.xml
index 7fe7471..c54e738 100644
--- a/chapter-9/pom.xml
+++ b/chapter-9/pom.xml
@@ -33,7 +33,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.41</version>
+            <version>1.2.83</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/org.apache.spark/spark-sql-kafka-0-10 -->