diff --git a/build/Dockerfile b/build/Dockerfile
index 2b483ded1..43719735c 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.19
+# syntax=docker/dockerfile:1.20
 FROM golang:1.25.2 AS builder
 ARG VERSION
 ARG TARGETARCH