diff --git a/Dockerfile b/Dockerfile
index bc6b287..3c94191 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.4.0
+# syntax=docker/dockerfile:1.26.0
 FROM rust:1.66.0-slim-bullseye as builder
 
 RUN set -x \