Upgrade Your Node.js App to the Latest Secure LTS
Running on an outdated, end-of-life version of Node.js? We bring legacy apps up to the latest supported LTS, detect every known vulnerability, and patch it — with zero downtime and no freeze on your roadmap.
No commitment · Written assessment · Fixed-scope estimate
An outdated Node.js version is a liability
Once your Node.js version reaches end-of-life, the official security patches stop. Every month you stay behind, the risk and the cost of catching up grow.
Node.js upgrade & security services
End-to-end modernization for Node.js applications — from version upgrades to vulnerability patching.
Node.js Version Upgrades
Move from any end-of-life version — Node 12, 14, 16, or 18 — up to the latest secure LTS release. Incremental, fully tested upgrades that never block your team.
Security Audit & Patching
A full vulnerability scan of your application and every dependency. We surface known CVEs, unpatched packages, and insecure patterns — then patch them.
Dependency Modernization
Update, replace, or remove outdated and abandoned packages. We resolve version conflicts across npm, Yarn, or pnpm and shrink your dependency surface area.
Framework Upgrades
Upgrade Express, NestJS, Fastify, or Next.js to current, supported releases — migrating deprecated APIs and breaking changes, fully tested against your suite.
ESM, TypeScript & CI
Migrate CommonJS to ESM, tighten types, and shore up the test suite — then stand up CI so every change is verified and you stay current going forward.
Performance & Stability
Capitalize on modern V8 and Node internals — faster startup, lower memory, and native fetch and worker threads — once you're on a current LTS.
Find every vulnerability. Patch it.
We run a deep security audit across your application and its entire dependency tree, then fix what we find. You get a prioritized report and a hardened, patched codebase.
- Known CVEs in Node.js and its core modules
- Vulnerable packages via npm audit & Snyk
- Static analysis with ESLint security rules
- Insecure defaults & deprecated, removed APIs
- Exposed secrets and misconfigurations
- SQL injection, XSS, and prototype pollution exposure
A proven, low-risk upgrade process
Incremental, test-driven, and transparent at every step — so your business keeps moving while we modernize.
Audit & Assessment
We analyze your codebase, Node and framework versions, dependencies, and test coverage — then deliver a written report of risks and a clear upgrade path.
Roadmap & Estimate
A prioritized, milestone-based plan with fixed checkpoints, so you know the scope, sequence, and cost before we write a single line of code.
Incremental Upgrade
We upgrade one LTS at a time behind the scenes, migrating deprecated APIs as we go — your team keeps shipping features the whole way through.
Test & Verify
Every step is validated against an expanded test suite and CI, so nothing regresses when it reaches production.
Deploy & Harden
We ship the upgrade with zero (or near-zero) downtime, patch outstanding vulnerabilities, and leave you with a maintainable, current stack.
Senior engineers who've shipped Node.js for 20+ years
We've built, scaled, and secured production systems across fintech, legal tech, healthcare, and hospitality.
Frequently asked questions
Everything you need to know about upgrading and securing your Node.js app.
How long does a Node.js upgrade take?
It depends on how many versions you're behind, the size of your codebase, and your existing test coverage. Most upgrades run from a few weeks to a couple of months. The free audit gives you a concrete timeline before you commit to anything.
Will the upgrade break my application?
No. We use an incremental approach and lean heavily on automated tests and CI, so each LTS jump is verified before it ships. Your app keeps running the entire time.
Can you upgrade a very old Node app (Node 10, 12, or 14)?
Yes. We routinely bring legacy applications from end-of-life Node 10, 12, and 14 all the way up to the latest supported LTS, one major version at a time.
What does the security audit cover?
We scan Node.js and its core modules for known CVEs, check every dependency against vulnerability advisory databases with npm audit and Snyk, run static analysis with ESLint security rules, and review your app for insecure defaults, exposed secrets, prototype pollution, and OWASP-class issues. You get a prioritized report and we patch what we find.
Do we have to stop feature work during the upgrade?
No. We work incrementally and in parallel, so your team can keep developing and deploying features while the upgrade proceeds.
How much does it cost?
Every application is different, so we scope each engagement from the initial audit. You get a fixed, milestone-based estimate up front — no open-ended hourly billing.
Ready to modernize your Node.js app?
Get a free, no-obligation audit of your Node.js application. We'll assess your version, dependencies, and security exposure — and give you a clear, fixed-scope plan to get current.