diff --git a/pom.xml b/pom.xml
index 83c0d59..c7aede2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -135,6 +135,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
 		<plume-framework.version>4.1.1</plume-framework.version>
+		<!-- TODO: upgrade or delete in Plume 5 -->
 		<plume-file.version>1.0.0-rc9</plume-file.version>
 		<plume-admin.version>4.1.0</plume-admin.version>