diff --git a/sentiment_proj/pom.xml b/sentiment_proj/pom.xml
index 64e211a..ca4df04 100644
--- a/sentiment_proj/pom.xml
+++ b/sentiment_proj/pom.xml
@@ -42,7 +42,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.28</version>
+            <version>1.2.83</version>
         </dependency>
 
 		<dependency>