Upgrade Your Python App to the Latest Secure Version
Running on an outdated, unsupported version of Python? We bring legacy apps up to the latest stable release, 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An outdated Python version is a liability
Once your Python version reaches end-of-life, the official security patches stop. Every month you stay behind, the risk and the cost of catching up grow.
Python upgrade & security services
End-to-end modernization for Python applications — from version upgrades to vulnerability patching.
Python Version Upgrades
Move from any legacy version — Python 2.7, 3.6, 3.7, or 3.8 — up to the latest stable, secure 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Update, replace, or remove outdated and abandoned packages.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 pip, Poetry, or uv and shrink your dependency surface area.
Framework Upgrades
Upgrade Django, Flask, FastAPI, or Celery to current, supported releases — migrating deprecated APIs and breaking changes, fully tested against your suite.
Test Coverage & CI
We shore up the test suite with pytest before and during the upgrade so every change is verified, then stand up CI so you stay current going forward.
Performance & Stability
Capitalize on modern Python internals — faster interpreters, type hints, and async — once you're on a current, supported version.
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 Python and the standard library
- Vulnerable packages via pip-audit & Safety
- Static analysis with Bandit
- Insecure defaults & deprecated, removed APIs
- Exposed secrets and misconfigurations
- SQL injection, XSS, and CSRF 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, Python 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 version 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 Python 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 Python app.
How long does a Python 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 version jump is verified before it ships. Your app keeps running the entire time.
Can you migrate a very old app from Python 2 to 3?
Yes. We routinely bring legacy Python 2.7 applications all the way up to the latest stable Python 3 release, migrating deprecated syntax and libraries along the way.
What does the security audit cover?
We scan Python and the standard library for known CVEs, check every dependency against vulnerability advisory databases with pip-audit and Safety, run static analysis with Bandit, and review your app for insecure defaults, exposed secrets, 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 Python app?
Get a free, no-obligation audit of your Python application. We'll assess your version, dependencies, and security exposure — and give you a clear, fixed-scope plan to get current.