diff --git a/docker/Dockerfile b/docker/Dockerfile
index 5598846b..38b30df7 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,9 +1,9 @@
-# syntax=docker/dockerfile:1.5
+# syntax=docker/dockerfile:1.6
 FROM debian:12-slim
 
 LABEL maintainer="NGINX Docker Maintainers <integrations@nginx.com>"
 
-ARG NGINX_PLUS_VERSION=R30
+ARG NGINX_PLUS_VERSION=R31
 
 # Install NGINX Plus
 # Download certificate and key from the customer portal (https://my.f5.com)