From d35fed462ff199ace89cfce0432573d1274d62b7 Mon Sep 17 00:00:00 2001
From: "renovate[bot]" <29139614+renovate[bot]@users.noreply.github.com>
Date: Thu, 22 Jan 2026 13:59:07 +0000
Subject: [PATCH] chore(deps): update docker/dockerfile docker tag to v1.21

---
 images/src/research/Dockerfile | 2 +-
 images/src/typst/Dockerfile    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/images/src/research/Dockerfile b/images/src/research/Dockerfile
index 0a4ba24..6f65017 100644
--- a/images/src/research/Dockerfile
+++ b/images/src/research/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.9
+# syntax=docker/dockerfile:1.21
 FROM quay.io/jupyter/datascience-notebook@sha256:dca3998d5dcb3fa63cdaf4f7b08f5c14e61baedcaad1bdbb2ac96fb0cc6b224a
 
 SHELL [ "/bin/bash", "-eou", "pipefail", "-c" ]
diff --git a/images/src/typst/Dockerfile b/images/src/typst/Dockerfile
index 22cd4e8..25dcda5 100644
--- a/images/src/typst/Dockerfile
+++ b/images/src/typst/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.9
+# syntax=docker/dockerfile:1.21
 #! Dockerfile syntax can be retrieved from https://hub.docker.com/r/docker/dockerfile
 #* Use a variant of `mcr.microsoft.com/devcontainers/rust` which is compatible with the
 #*   MAJOR version of Rust used by the Typst project!