diff --git a/chapter4/knative-quarkus-function-ce/pom.xml b/chapter4/knative-quarkus-function-ce/pom.xml
index 5c1c034..bd58a19 100644
--- a/chapter4/knative-quarkus-function-ce/pom.xml
+++ b/chapter4/knative-quarkus-function-ce/pom.xml
@@ -6,7 +6,7 @@
   <artifactId>function</artifactId>
   <version>1.0.0-SNAPSHOT</version>
   <properties>
-    <compiler-plugin.version>3.13.0</compiler-plugin.version>
+    <compiler-plugin.version>3.15.0</compiler-plugin.version>
     <maven.compiler.release>21</maven.compiler.release>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>