Worked on maintaining the reliability of blockchain development workflows by updating the Ethereum testnet RPC endpoint in the wormhole-sdk-ts repository. Addressed the deprecation of the Goerli testnet by transitioning configuration constants to use Sepolia, ensuring continued connectivity and stable testing environments for backend systems. The update was implemented in TypeScript, focusing on backend and blockchain development best practices. By tracking the change in a single, reproducible commit, the work improved traceability and minimized potential disruptions in CI and development pipelines. This targeted bug fix supported ongoing development efforts by aligning infrastructure with current Ethereum testnet standards and reducing connectivity issues.