Abstract: A tamper-resistant device retrofits onto an existing parking meter or other coin accepting machine to increase the exterior security of the parking meter at the point where the coins are deposited into the parking meter. Accordingly, potential thieves and vandals would not have direct access to the internal components of the parking meter, thereby eliminating the possibility of intentionally stuffing and blocking the coin track by inserting objects other than coins into the coin track. The tamper-resistant device provides a deposit slot spaced apart from the original coin slot for depositing one coin at a time into the parking meter. By relocating the deposit slot, the tamper-resistant device prevents vandals from inserting hard objects directly into the parking meter, thereby damaging the internal components of the parking meter.