http://research.iac.es/proyecto/emir/ {EMIR} is one of the first common user instruments for the GTC, the 10 meter telescope operating at the Roque de los Muchachos Observatory (La Palma, Canary Islands, Spain). EMIR has been built by a Consortium of Spanish and French institutes led by the Instituto de Astrofísica de Canarias (IAC). The instrument is primarily designed to be operated as a MOS in the K band, but offers a wide range of observing modes, including imaging and spectroscopy, both long slit and multi-object, in the wavelength range 0.9 to 2.5 $\mu$m. EMIR had its first light on June 2016 and started routine observation in 2017, while the MOS mode was commissioned and offered to the community in 2018. Since the beginning, EMIR performances were hampered by the high noise and instabilities of its detector, a Hawaii2 $2048^2$ array. We had no option but to use this low quality item as the original detector, much superior in virtually every aspect, was flagged with potential risk of explosion due to a defect in the fabrication procedure, that was corrected in subsequent fabrication batches. At that time, there were no more detectors available of the same type, a PACE architecture in the hybrid Silicon chip plus MCT. The lack of sensitivity due to the signal instabilities is more pronounced in spectroscopic mode, while the data frames taken in image mode could be cleaned to a large extent. With support from the Spanish national funding agency, GRANTECAN has acquired two Teledyne Hawaii2 RG + ASIC to be used in the EMIR and FRIDA instruments. We are characterising the arrays in the lab and are executing a complex plan to permit the replacement of the EMIR detector in short time. This plan includes changes in the control software and a new detector assembly with piezoelectric actuators for remote control and adjustment of the alignment. In this contribution we will provide a short description of the main problems of the current detector and will show how the new detector will improve significantly in all of these. We will also mention the current plans for installation.