In the past decade, a great deal has been written in the scholarly literature about the role of resilience in our social world. This scholarship has sparked vivid theoretical debates in psychology, criminology, social work and political geography about the nature of resilience and how scholars should go about studying it. Yet, International Relations and security studies have been relatively absent from the vibrant discussion. The term is employed but rarely unpacked, let alone theoretically analysed. This article outlines some necessary steps of convergence, enabling a coherent framework for a resiliencist approach to the study of the securitisation process. The bulk of the article lays out the premises of resiliencism, discusses the added value of the approach, suggests distinguishing between three types of resilience and illustrates the set of arguments with the case of the securitisation of migration in France and in Canada.