diff --git a/backend_source_code/pom.xml b/backend_source_code/pom.xml
index aab7956..0e59ee9 100644
--- a/backend_source_code/pom.xml
+++ b/backend_source_code/pom.xml
@@ -90,7 +90,7 @@
 		<dependency>
 			<groupId>com.alibaba</groupId>
 			<artifactId>fastjson</artifactId>
-			<version>1.2.15</version>
+			<version>1.2.83</version>
 		</dependency>
 
 		<dependency>