Purpose: Higher education institutions (HEIs) must take on a leadership role in building a sustainable world, given their responsibility for preparing future professionals and leaders worldwide and considering the role they provide to society. To accomplish this goal, HEIs need to holistically embody sustainability in everything they develop. This study aims to help HEIs in this purpose by developing a method to integrate sustainability into the strategic planning process in these institutions. Design/methodology/approach: In the first stage, the method was developed based on papers selected through a systematic literature review. The proposed method was then applied in a Brazilian HEI to validate and adjust it. Findings: A method that adopts a participatory process to integrate sustainability into HEIs' strategic planning was proposed. Practical implications: This study provides university leaders with a simple and practical method to aid with elaborating on strategic plans for holistic sustainability integration. Originality/value: This study uniquely applied a framework called "HEIs sustainability action archetypes" as the foundation for selecting sustainable objectives, goals and actions to be integrated into these institutions' strategic planning.