During April 2025, Durica Nikolic enhanced the security of the grafana/jsonnet-libs repository by implementing CI/CD security hardening for GitHub Actions workflows. He focused on disabling credential persistence between workflow runs and defining explicit permissions, thereby reducing the risk of credential leakage and aligning the pipeline with industry security best practices. Using YAML for configuration and leveraging his expertise in CI/CD and GitHub Actions, Durica ensured that credentials are not retained unnecessarily and that workflow privileges are minimized. This work improved the repository’s audit readiness and overall security posture, demonstrating a thorough and practical approach to CI/CD pipeline security.