A method for updating a system that synchronizes medical data between a cloud repository on a cloud server and a plurality of local repositories on a plurality of local servers of healthcare facilities connected to the cloud server is provided. The method includes, by the cloud server: receiving a request to update a medical synchronization application stored on the cloud server and each of the local servers of the healthcare facilities using an update file; transmitting an instruction to each local server to update the medical synchronization application determining a version information of the medical synchronization application on all of the local servers; and executing the update file to update the medical synchronization application on the cloud server only in the event that cloud server determines that the medical synchronization application of all of the local servers have been updated.