diff --git a/build/Dockerfile b/build/Dockerfile
index 33cbb00309..79177cca2d 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.16
+# syntax=docker/dockerfile:1.18
 ARG BUILD_OS=debian
 ARG NGINX_OSS_VERSION=1.29
 ARG NGINX_PLUS_VERSION=R35
diff --git a/build/dependencies/Dockerfile.ubi8 b/build/dependencies/Dockerfile.ubi8
index b774cbe612..53af31cb4b 100644
--- a/build/dependencies/Dockerfile.ubi8
+++ b/build/dependencies/Dockerfile.ubi8
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.16
+# syntax=docker/dockerfile:1.18
 FROM redhat/ubi8@sha256:534c2c0efa4150ede18e3f9d7480d3b9ec2a52e62bc91cd54e08ee7336819619 AS rpm-build
 RUN mkdir -p /rpms/ \
     && dnf install rpm-build gcc make cmake -y \
diff --git a/build/dependencies/Dockerfile.ubi9 b/build/dependencies/Dockerfile.ubi9
index 5fe15c2dfb..08de061f55 100644
--- a/build/dependencies/Dockerfile.ubi9
+++ b/build/dependencies/Dockerfile.ubi9
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.16
+# syntax=docker/dockerfile:1.18
 FROM redhat/ubi9:9.6@sha256:dbc1e98d14a022542e45b5f22e0206d3f86b5bdf237b58ee7170c9ddd1b3a283 AS rpm-build
 RUN mkdir -p /rpms/ \
     && dnf install rpm-build gcc make cmake -y \
diff --git a/tests/Dockerfile b/tests/Dockerfile
index d0e5f85985..a02b8881f0 100644
--- a/tests/Dockerfile
+++ b/tests/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1.16
+# syntax=docker/dockerfile:1.18
 FROM python:3.13-bookworm@sha256:f64a1db27d5d0fdcb48a54c553e67b0ec920c8a1ef0b627e87b8d3d73dc003fb
 
 RUN apt-get update \