diff --git a/Dockerfile b/Dockerfile
index 6b2db0a..5a11f71 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-#syntax=docker/dockerfile:1.7
+#syntax=docker/dockerfile:1.9
 
 FROM --platform=$BUILDPLATFORM golang:1.22.2-alpine as builder
 WORKDIR /app