Worked on the pass-culture-main repository to deliver PostCSS dependency stabilization for the build process. Addressed build reliability by upgrading PostCSS to version 8.5.14 and enforcing a minimum version of 8.5.10 within package.json, ensuring compatibility across development and deployment environments. Utilized JavaScript and Node.js to manage dependencies and maintain consistent build behavior in CI/CD pipelines. Focused on reducing the risk of build-time errors caused by outdated dependencies, the work improved deployment reliability without introducing new features or bug fixes. The approach demonstrated attention to dependency management and build process stability, contributing to a more predictable development workflow.