Applied Physical Sciences Corp., Groton, Connecticut, is awarded a $7,999,919 modification (P00018) to a previously awarded cost-plus fixed-fee contract (HR001120C0100) for refurbishment of three existing KRAKEN prototype units, provision of engineering services for system improvements, command and control integration, and system autonomy upgrades. The effort will also include participation in one fleet exercise, including system deployment and recovery. Fiscal 2024 research, development, test, and evaluation (Navy) funds are being used to fund this modification. Work will be performed in Groton, Connecticut, and is expected to be completed in November 2025. The Naval Information Warfare Systems Command, San Diego, California, awarded the contract on behalf of the Navy Program Executive Office for Undersea Warfare Systems, Maritime Surveillance Systems Program Office. The Naval Information Warfare Systems Command, San Diego, California, is the contracting activity (N00039).