diff --git a/hw4.16/pom.xml b/hw4.16/pom.xml
index 4aeed04..93d816b 100644
--- a/hw4.16/pom.xml
+++ b/hw4.16/pom.xml
@@ -25,7 +25,7 @@
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-webmvc</artifactId>
-      <version>5.2.1.RELEASE</version>
+      <version>5.2.20.RELEASE</version>
     </dependency>
 
       <dependency>