The growth of modern science is fastest along the borderlines between the traditional disciplines. Interdisciplinarity usually benefits all fields involved in a given research despite their diversity. In this short report, we analyze the current state of interdisciplinary science in Slovenia. By detecting the communities in co-authorship networks we investigate the raise of interdisciplinary research groups from 1960 to 2000. Our preliminary findings indicate that although interdisciplinarity is clearly gaining ground in Slovenian research landscape, there are still many barriers to overcome.