diff --git a/docker/router.Dockerfile b/docker/router.Dockerfile
index 5d87400b..45318c24 100644
--- a/docker/router.Dockerfile
+++ b/docker/router.Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.18
+# syntax=docker/dockerfile:1.19
 
 FROM gcr.io/distroless/cc-debian12
 ARG TARGETARCH