Provided is a method for patching an operating system 100 on a secure element 103 embedded in a terminal. The method comprises transmitting from a platform 101 to a SM-SR 102 an order to create on the secure element 103 an ISD-P 104, establishing between the platform 101 and the ISD-P or the secure element 103 a secure channel, transmitting from the SM-SR 102 to the secure element 103 a patch of the operating system, executing in the ISD-P 104 the patch of the operating system, and sending from the secure element 103 to the platform 101 a message informing the platform 101 of the result of the execution of the patch.