PurposeThe challenges to healthcare caused by the COVID-19 pandemic forced hospital librarians to develop their abilities to cope with change and crises, both on a social level and an organisational level. The aim of this study is to contribute to knowledge about how hospital librarians developed library services during the pandemic and how these changes contributed to building information resilience in the healthcare organisation. This paper also seeks to explore how resilience theory, and specifically the concept information resilience, can be used within library and information science (in LIS) to investigate resilience in the library sector.Design/methodology/approachNine semi-structured interviews with librarians were conducted at four different hospital libraries in four different regions in Sweden between March and May 2022. The empirical material was analysed through an interaction between the tzheoretical perspective and the empirical material through a thematic analysis. In each theme, specific resilience resources are identified and analysed as components of the information resilience developed by hospital librarians.FindingsThe results show that hospital librarians contribute to several different information resilience resources, which support information resilience in the healthcare organisation. Three aspects characterize the qualities of resilience resources: access, flexibility, and collaboration. The findings suggest that the framework for analysing information resilience used in this study is well suited for studying the resilience of libraries from both organisational and informational aspects.Originality/valueThe analysis of information resilience on an organisational level presents a novel way to study resilience in the library sector.