diff --git a/rocketmq-externals-ldos/rocketmq-connect-cassandra/pom.xml b/rocketmq-externals-ldos/rocketmq-connect-cassandra/pom.xml
old mode 100755
new mode 100644
index 286a6ef..21c596b
--- a/rocketmq-externals-ldos/rocketmq-connect-cassandra/pom.xml
+++ b/rocketmq-externals-ldos/rocketmq-connect-cassandra/pom.xml
@@ -209,7 +209,7 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>fastjson</artifactId>
-            <version>1.2.60</version>
+            <version>1.2.83</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>