diff --git a/rocketmq-externals-ldos/rocketmq-connect/pom.xml b/rocketmq-externals-ldos/rocketmq-connect/pom.xml
old mode 100755
new mode 100644
index 833cdcb..2fc9d7a
--- a/rocketmq-externals-ldos/rocketmq-connect/pom.xml
+++ b/rocketmq-externals-ldos/rocketmq-connect/pom.xml
@@ -43,7 +43,7 @@
         <mockito.version>2.6.3</mockito.version>
         <httpclient.version>4.5.5</httpclient.version>
         <openmessaging.connector.version>0.1.1</openmessaging.connector.version>
-        <fastjson.version>1.2.58</fastjson.version>
+        <fastjson.version>1.2.83</fastjson.version>
         <javalin.version>1.3.0</javalin.version>
         <slf4j.version>1.7.7</slf4j.version>
         <logback.version>1.0.13</logback.version>