diff --git a/examples/liberty-car-booking/pom.xml b/examples/liberty-car-booking/pom.xml
index 3d4b008..eea1885 100644
--- a/examples/liberty-car-booking/pom.xml
+++ b/examples/liberty-car-booking/pom.xml
@@ -27,6 +27,10 @@
         <jakartaee-api.version>10.0.0</jakartaee-api.version>
         <microprofile-api.version>6.1</microprofile-api.version>
         <war-plugin.version>3.4.0</war-plugin.version>
+        
+        <!-- We need only javac to use the release parameter. OpenLiberty doesn't depend on maven-compiler-plugin.' -->
+        <maven.compiler.source combine.self="override" />
+        <maven.compiler.target combine.self="override" />
 
         <!--Strictly for OpenLiberty-->
         <liberty.env.ENGINE_CACHE_DIR>${project.build.directory}/liberty/wlp/usr/shared/resources/lib/</liberty.env.ENGINE_CACHE_DIR>