diff --git a/Dockerfile b/Dockerfile
index 1cb02b34..045a5b2d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax = docker/dockerfile:1.26
+# syntax = docker/dockerfile:1.27
 
 FROM python:3.13-bookworm AS docs-source