Correction to: Nature Cell Biology https://doi.org/10.1038/s41556-021-00708-8, published online 8 July 2021.

In the version of the article initially published, the lower-right image in Extended Data Fig. 4a (TNF + dmPGE2, Casp8ΔIEC) was incorrect and was a magnified version of the “TNF + EP4-D” image in Extended Data Fig. 4b. The correct image has now been added to Extended Data Fig. 4a in the HTML and PDF versions of the article. The original, uncorrected figure is available for comparison in the Supplementary information accompanying this notice.