diff --git a/sub1/pom.xml b/sub1/pom.xml
index fbf9fe8..78a5484 100644
--- a/sub1/pom.xml
+++ b/sub1/pom.xml
@@ -366,7 +366,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-webmvc</artifactId>
-            <version>4.1.5.RELEASE</version>
+            <version>5.2.20.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>