Nat. Cell Biol. 17, 1205–1217 (2015); published online 17 August 2015; corrected after print 28 August 2015

In the original version of this Article, a sentence was changed in error during production. This sentence should have read 'To understand to what extent mTOR regulates the SASP, we analysed the secretome of senescent cells by mass spectrometry (MS; refs 24, 25).' There was a further typographical error in one instance of 'SASP components'. These errors have been corrected in all online versions of the Article.