diff --git a/ch15-1/ch15-1-gateway/pom.xml b/ch15-1/ch15-1-gateway/pom.xml
index 8a2b3905..c01eb5bb 100644
--- a/ch15-1/ch15-1-gateway/pom.xml
+++ b/ch15-1/ch15-1-gateway/pom.xml
@@ -46,7 +46,7 @@
 		<dependency>
               <groupId>com.alibaba</groupId>
               <artifactId>fastjson</artifactId>
-              <version>1.2.33</version>
+              <version>1.2.83</version>
         </dependency>
 	</dependencies>