Worked on security hardening and maintenance for the monte-carlo-data/apollo-agent repository, focusing on dependency and vulnerability management using Python. Addressed a disclosed vulnerability by upgrading the snowflake-connector-python dependency from version 3.12.2 to 3.12.4, directly reducing risk exposure in the Snowflake integration. No new features were introduced during this period, as the primary objective was to ensure system stability, maintainability, and compliance with security standards. The technical approach centered on proactive dependency management to mitigate vulnerabilities and preserve reliability. This work reflects a depth of focus on backend security and operational resilience rather than feature development or user-facing changes.