diff --git a/Dockerfile b/Dockerfile
index 1cf8bf0..85a675b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,14 @@
 # base node image
-FROM node:16-bullseye-slim as base
+FROM node:22-bullseye-slim AS base
 
 # set for base and all layer that inherit from it
-ENV NODE_ENV production
+ENV NODE_ENV=production
 
 # Install openssl for Prisma
 RUN apt-get update && apt-get install -y openssl sqlite3
 
 # Install all node_modules, including dev dependencies
-FROM base as deps
+FROM base AS deps
 
 WORKDIR /timer
 
@@ -16,7 +16,7 @@ ADD package.json .npmrc ./
 RUN npm install --include=dev
 
 # Setup production node_modules
-FROM base as production-deps
+FROM base AS production-deps
 
 WORKDIR /timer
 
@@ -25,7 +25,7 @@ ADD package.json .npmrc ./
 RUN npm prune --omit=dev
 
 # Build the app
-FROM base as build
+FROM base AS build
 
 WORKDIR /timer