Transgressive learning has gained scholarly interest as a way of enabling learners to question and defy norms that perpetuate unsustainability. However, transgression can also be risky and calls for responsible teaching able to identify and prevent such risks. This paper asks How transgressive learning can be responsibly integrated into sustainability pedagogy. It clarifies these risks of transgression and identifies six empirically validated transgressive competencies students should learn. Finally, it outlines pedagogical approaches for teaching these competencies more responsibly and effectively.