diff --git a/Dockerfile b/Dockerfile
index f1035873..06dae061 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1
-ARG NODE_VERSION=18
+arg NODE_VERSION=18
 
-FROM node:${NODE_VERSION} AS build
+from node:${NODE_VERSION} as build
 workdir /app
 run apt-get update > /dev/null && apt-get -y install python3-pip > /dev/null
 run mkdir certs && openssl req -x509 -newkey rsa:2048 -sha256 -days 36500 -nodes -keyout certs/privkey.pem -out certs/fullchain.pem -subj '/CN=dialog'
@@ -9,9 +9,9 @@ copy package.json .
 copy package-lock.json .
 run npm ci
 copy . .
-from node:lts-slim
+from node:${NODE_VERSION}-slim
 workdir /app
 copy --from=build /app /app
 run apt-get update > /dev/null && apt-get install -y jq curl dnsutils netcat > /dev/null
 copy scripts/docker/run.sh /run.sh
-cmd bash /run.sh
+cmd ["bash", "/run.sh"]