diff --git a/spring_aop/pom.xml b/spring_aop/pom.xml
index 6d102be..8a19a09 100644
--- a/spring_aop/pom.xml
+++ b/spring_aop/pom.xml
@@ -47,7 +47,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-core</artifactId>
-            <version>5.3.3</version>
+            <version>5.3.20</version>
         </dependency>
         <!--
          https://mvnrepository.com/artifact/org.springframework/spring-context