From c72ac41280bfe012a34db5d0a98c03f509ec4ef7 Mon Sep 17 00:00:00 2001
From: "renovate[bot]" <29139614+renovate[bot]@users.noreply.github.com>
Date: Thu, 29 Jan 2026 10:02:11 +0000
Subject: [PATCH] chore(deps): update docker/dockerfile docker tag to v1.21

---
 Dockerfile                         | 2 +-
 devel-containers/Dockerfile.devimg | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 6d49bde..35355ad 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.20-labs
+# syntax=docker/dockerfile:1.21-labs
 
 # The ARCH can be overridden by providing it a value in the command line
 # with the "--build-arg=XXX" argument fed to 'docker build'.
diff --git a/devel-containers/Dockerfile.devimg b/devel-containers/Dockerfile.devimg
index 3890099..010106a 100644
--- a/devel-containers/Dockerfile.devimg
+++ b/devel-containers/Dockerfile.devimg
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.20-labs
+# syntax=docker/dockerfile:1.21-labs
 
 # The ARCH can be overridden by providing it a value in the command line
 # with the "--build-arg=XXX" argument fed to 'docker build'.