diff --git a/Dockerfile.ci b/Dockerfile.ci
index 25a4fec074..04d59cb622 100644
--- a/Dockerfile.ci
+++ b/Dockerfile.ci
@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:1
 FROM docker.io/library/node:18-alpine AS builder
 WORKDIR /src
 COPY . ./
diff --git a/Dockerfile.dev b/Dockerfile.dev
index a85d53ac6f..a00826f979 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:1
 FROM brainpower/node-cubicle
 
 WORKDIR /root/repo