diff --git a/20171217/pom.xml b/20171217/pom.xml
index 4d5ac94..74c7d69 100644
--- a/20171217/pom.xml
+++ b/20171217/pom.xml
@@ -16,7 +16,7 @@
 		<dependency>
 			<groupId>com.alibaba</groupId>
 			<artifactId>fastjson</artifactId>
-			<version>1.2.43</version>
+			<version>1.2.83</version>
 		</dependency>
 
 		<dependency>