diff --git a/Websocket-ChatRoom-master/pom.xml b/Websocket-ChatRoom-master/pom.xml
index c9528f4..6034f62 100644
--- a/Websocket-ChatRoom-master/pom.xml
+++ b/Websocket-ChatRoom-master/pom.xml
@@ -214,7 +214,7 @@
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-webmvc</artifactId>
-    <version>4.3.7.RELEASE</version>
+    <version>5.2.20.RELEASE</version>
   </dependency>
   <dependency>
     <groupId>org.springframework</groupId>