diff --git a/Dockerfile b/Dockerfile
index af102ba1..bdea7359 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.2
+# syntax=docker/dockerfile:1.3
 
 ARG DOCKERD_VERSION=19.03
 ARG CLI_VERSION=19.03
diff --git a/hack/dockerfiles/docs.Dockerfile b/hack/dockerfiles/docs.Dockerfile
index c32bc7b4..2ec85380 100644
--- a/hack/dockerfiles/docs.Dockerfile
+++ b/hack/dockerfiles/docs.Dockerfile
@@ -1,4 +1,4 @@
-# syntax = docker/dockerfile:1.2
+# syntax=docker/dockerfile:1.3
 
 FROM golang:1.16-alpine AS docsgen
 WORKDIR /src
diff --git a/hack/dockerfiles/lint.Dockerfile b/hack/dockerfiles/lint.Dockerfile
index 6ff56a73..0c5adad3 100644
--- a/hack/dockerfiles/lint.Dockerfile
+++ b/hack/dockerfiles/lint.Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.2
+# syntax=docker/dockerfile:1.3
 
 FROM golang:1.16-alpine
 RUN apk add --no-cache gcc musl-dev yamllint
diff --git a/hack/dockerfiles/vendor.Dockerfile b/hack/dockerfiles/vendor.Dockerfile
index 117f2657..4c8ec408 100644
--- a/hack/dockerfiles/vendor.Dockerfile
+++ b/hack/dockerfiles/vendor.Dockerfile
@@ -1,4 +1,4 @@
-# syntax = docker/dockerfile:1.2
+# syntax=docker/dockerfile:1.3
 
 FROM golang:1.16-alpine AS vendored
 RUN  apk add --no-cache git rsync