diff --git a/modules/events-server-syslog/docker/Dockerfile b/modules/events-server-syslog/docker/Dockerfile
index 46acc9e..0f11857 100644
--- a/modules/events-server-syslog/docker/Dockerfile
+++ b/modules/events-server-syslog/docker/Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 FROM openjdk:11
 ARG KAFKATORIO_VERSION
 ARG DIST_DIR="../build/distributions/"
diff --git a/modules/events-server-web/docker/Dockerfile b/modules/events-server-web/docker/Dockerfile
index eebdaa0..e25170b 100644
--- a/modules/events-server-web/docker/Dockerfile
+++ b/modules/events-server-web/docker/Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 FROM openjdk:11
 ARG KAFKATORIO_VERSION
 ARG DIST_DIR="../build/distributions/"
diff --git a/modules/infra-factorio-server/factorio-and-kpipe-server/factorioEvents.Dockerfile b/modules/infra-factorio-server/factorio-and-kpipe-server/factorioEvents.Dockerfile
index 7c24909..4e639bd 100644
--- a/modules/infra-factorio-server/factorio-and-kpipe-server/factorioEvents.Dockerfile
+++ b/modules/infra-factorio-server/factorio-and-kpipe-server/factorioEvents.Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 ARG factorioVersion=1.1.42
 
 
diff --git a/modules/infra-kafka-cluster/src/kafka.Dockerfile b/modules/infra-kafka-cluster/src/kafka.Dockerfile
index 7670ec8..0a5e1b7 100644
--- a/modules/infra-kafka-cluster/src/kafka.Dockerfile
+++ b/modules/infra-kafka-cluster/src/kafka.Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 ARG KAFKA_DL_URL=https://dlcdn.apache.org/kafka/3.1.0/kafka_2.13-3.1.0.tgz
 
 ## builder ##
diff --git a/modules/infra-kafka-pipe/src/kafka-pipe.Dockerfile b/modules/infra-kafka-pipe/src/kafka-pipe.Dockerfile
index 02f8881..2b6b849 100644
--- a/modules/infra-kafka-pipe/src/kafka-pipe.Dockerfile
+++ b/modules/infra-kafka-pipe/src/kafka-pipe.Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 FROM docker:dind-rootless
 
 ENV FACTORIO_SERVER_CONTAINER_NAME="factorio-server"
diff --git a/modules/web-map/docker/Dockerfile b/modules/web-map/docker/Dockerfile
index f72c386..c62fa29 100644
--- a/modules/web-map/docker/Dockerfile
+++ b/modules/web-map/docker/Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1
+
 FROM nginx
 
 COPY ./docker/nginx.conf /etc/nginx/nginx.conf