diff --git a/build/Dockerfile b/build/Dockerfile
index 1560510..d30268f 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,8 +1,8 @@
 # node-livereload server supporting SSL/TLS
 
 # allow dynamic building by specifying base image elements as build-args
-ARG NODE_VERSION=16
-ARG ALPINE_VERSION=3.15
+ARG NODE_VERSION=18
+ARG ALPINE_VERSION=3.17
 FROM node:${NODE_VERSION}-alpine${ALPINE_VERSION} as builder
 ARG NODE_VERSION
 ARG ALPINE_VERSION