diff --git a/reconstruction/alert/pom.xml b/reconstruction/alert/pom.xml
index 4d2d43ba0f..bfd9fbf2bb 100644
--- a/reconstruction/alert/pom.xml
+++ b/reconstruction/alert/pom.xml
@@ -129,6 +129,7 @@
 
   <build>
     <plugins>
+      <!-- install 'ai.djl' runtime dependencies -->
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>