diff --git a/spring-cloud-function-adapters/spring-cloud-function-serverless-web/sample/pet-store/pom.xml b/spring-cloud-function-adapters/spring-cloud-function-serverless-web/sample/pet-store/pom.xml
index 8027a2c18..b5c667fd1 100644
--- a/spring-cloud-function-adapters/spring-cloud-function-serverless-web/sample/pet-store/pom.xml
+++ b/spring-cloud-function-adapters/spring-cloud-function-serverless-web/sample/pet-store/pom.xml
@@ -28,7 +28,7 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <spring.version>5.3.25</spring.version>
         <junit.version>4.13.2</junit.version>
-        <log4j.version>2.25.4</log4j.version>
+        <log4j.version>2.25.5</log4j.version>
     </properties>
 
     <dependencies>