diff --git a/src/ChatApplication/ChatSysWeb/packages.config b/src/ChatApplication/ChatSysWeb/packages.config
index 381e808..b142fb4 100644
--- a/src/ChatApplication/ChatSysWeb/packages.config
+++ b/src/ChatApplication/ChatSysWeb/packages.config
@@ -8,6 +8,6 @@
   <package id="Microsoft.Owin" version="2.0.2" targetFramework="net45" />
   <package id="Microsoft.Owin.Host.SystemWeb" version="2.0.2" targetFramework="net45" />
   <package id="Microsoft.Owin.Security" version="2.0.2" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="5.0.8" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
 </packages>
\ No newline at end of file