From c77f8dc6af953a21f1304606e34a0a1638ca3d9e Mon Sep 17 00:00:00 2001
From: "renovate[bot]" <29139614+renovate[bot]@users.noreply.github.com>
Date: Thu, 2 Apr 2026 04:41:30 +0000
Subject: [PATCH] Update docker/dockerfile Docker tag to v1.23

---
 .../resources/challenges/challenge-51/Dockerfile_challenge51    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/resources/challenges/challenge-51/Dockerfile_challenge51 b/src/main/resources/challenges/challenge-51/Dockerfile_challenge51
index 06dab2f29..c8b29ddff 100644
--- a/src/main/resources/challenges/challenge-51/Dockerfile_challenge51
+++ b/src/main/resources/challenges/challenge-51/Dockerfile_challenge51
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.21
+# syntax=docker/dockerfile:1.23
 FROM debian:stable-slim
 
 RUN --mount=type=secret,id=db_user \