diff --git a/sysutils/dua-cli/Makefile b/sysutils/dua-cli/Makefile
index 08d5caefbc8f..ae701321a53c 100644
--- a/sysutils/dua-cli/Makefile
+++ b/sysutils/dua-cli/Makefile
@@ -1,6 +1,8 @@
-# $NetBSD: Makefile,v 1.1 2021/08/05 11:10:47 pin Exp $
+# $NetBSD: Makefile,v 1.2 2021/08/16 13:04:52 pin Exp $
 
 DISTNAME=	dua-cli-2.14.4
+# Do not update this package. Newer versions require Rust>=1.54.0
+# in order to build clap-3.0.0-beta.4
 CATEGORIES=	sysutils
 MASTER_SITES=	${MASTER_SITE_GITHUB:=Byron/}
 GITHUB_TAG=	v${PKGVERSION_NOREV}