To fill the research gap and expand the body of knowledge on quiet quitting (QQ), the current study, utilising the conservation of resources theory (COR), investigates the effect of high-performance work systems (HPWS), psychological meaningfulness, and psychological availability on quiet quitting. A survey of 431 participants confirmed that HPWS, psychological meaningfulness, and psychological availability are negatively related to QQ. We also found that psychological meaningfulness and psychological availability are mediating mechanisms through which HPWS can result in reduced QQ. The findings make theoretical contributions, have practical implications and we also offer directions for future research.