diff --git a/pom.xml b/pom.xml
index c0760bf..22c8403 100644
--- a/pom.xml
+++ b/pom.xml
@@ -161,6 +161,7 @@ Use is subject to <a href="{@docRoot}/doc-files/speclicense.html" target="_top">
               <goal>add-module-info</goal>
             </goals>
             <configuration>
+              <jvmVersion>9</jvmVersion>
               <module>
                 <moduleInfoFile>src/main/java9/module-info.java</moduleInfoFile>
               </module>