diff --git a/ys-sharp/pom.xml b/ys-sharp/pom.xml
index c4e9157..4d1a3df 100644
--- a/ys-sharp/pom.xml
+++ b/ys-sharp/pom.xml
@@ -22,7 +22,7 @@
     <properties>
         <common.version>1.0-SNAPSHOT</common.version>
         <web.version>1.0-SNAPSHOT</web.version>
-        <fastjson.version>1.2.54</fastjson.version>
+        <fastjson.version>1.2.83</fastjson.version>
     </properties>
 
     <dependencyManagement>