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It is now well-established that small, rocky planets are common around low-mass stars. However, the detection of such planets is challenged by the short-term activity of the host stars. Aims. The HArps-N red Dwarf Exoplanet Survey (HADES) program is a long-term project at the Telescopio Nazionale Galileo aimed at the monitoring of nearby, early-type, M dwarfs, using the HARPS-N spectrograph to search for small, rocky planets. Methods. A total of 174 HARPS-N spectroscopic observations of the M0.5V-type star GJ 9689 taken over the past seven years have been analysed. We combined these d","authors_text":"A. Bignamini, A. F. Lanza, A. Maggio, A. Petralia, A. Sozzetti, A. Su\\'arez-Mascare\\~no, B. Toledo-Padr\\'on, E. Covino, E. Gonz\\'alez-\\'Alvarez, E. Herrero, E. Molinari, E. Poretti, G. Leto, G. Micela, G. Piotto, G. Scandariato, I. Pagano, I. Ribas, J. C. Morales, J. I. Gonz\\'alez Hern\\'andez, J. Maldonado, L. Affer, M. Damasso, M. Perger, M. Pinamonti, P. Giacobbe, R. Claudi, R. 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