Artificial intelligence (AI) has recently become a topic of interest for the nations, leading to research. In the case of libraries, data collection on AI use was conducted until 2020, raising the possibility of changes in research characteristics. This systematic review of open access articles on the use of AI in libraries provides an overview of the study of this technology in the library field in recent years. This quantitative study has a descriptive scope that focused on the analysis of the results obtained through a systematic review in the Web of Science (WoS) database for the period 2019-2023 on the use of AI in libraries. For this research, a characterisation of the articles on the use of AI in libraries was carried out and the following factors were analysed: geographical distribution of publication, language, institutions, journals, and publishers involved. The study shows a rise in research on AI and its use in libraries since 2022, a year that coincides with an increase in the publication of legislative proposals, laws, policies, and national strategies on AI worldwide.