The 21st century is referred to as the digital age, which places demands not only on the ability to work with information but also on being able to understand them as well as evaluate its relevance. The aim of this paper was to find out how ICT competences affect the individual domains of critical thinking in university students. The sample consisted of 624 university students. The data were collected using the Critical Thinking Disposition Inventory (CTDI) and the Information and Communication Technology Competence (ICTC). The results of the correlation analyses revealed weak to medium relationships among all of the observed domains. The subsequent linear regression models showed that all of the domains of critical thinking were affected by ICT competences. In this context, the most interesting was the effect of ICT competences on open mindedness while the effect on the remaining factors of critical thinking was weaker.