Recently, there has been a noticeable transition from centralized computing systems towards decentralized distributed platforms, significantly influenced by the rise of blockchain technologies, exemplified by innovations like Bitcoin. This advent has spurred the growth of decentralized applications (dApps) spanning diverse sectors, from real estate and banking to insurance and digital identity. Key to this widespread adoption is blockchain’s inherent transparency, tamper-resistance, and trustworthiness, which it achieves through smart contracts. Industries are leveraging smart contracts to streamline negotiations. However, the immutable nature of smart contracts poses challenges, especially when continuous negotiations demand adaptability. This situation leads us to explore Upgradeable Smart Contracts that can accommodate the dynamic nature of negotiations. In this thesis, we first examine the state of the art, focusing on upgradeable mechanisms such as proxy patterns. We then present a proof of concept implementation of the transparent proxy pattern to investigate how they can be used to facilitate negotiation. We use the logistics industry as a case study.