diff --git a/a16-spring-security1/pom.xml b/a16-spring-security1/pom.xml
index 55a44c3da..8f94eb3d3 100644
--- a/a16-spring-security1/pom.xml
+++ b/a16-spring-security1/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.springframework.security</groupId>
             <artifactId>spring-security-web</artifactId>
-            <version>5.8.11</version>
+            <version>5.8.15</version>
         </dependency>
 
         <dependency>