The news was announced in a post on Instagram, which features an animation of the album title. No track listing has been revealed.
Tool later published a tweet with a little more detail, adding "Album Art, Lead Track, and Pre-Order info TBA. Thank you for your patience."
The band have also announced that their back catalogue will be available on streaming platforms from Friday. It'll be the first time that 1993's Undertow, 1996's Ænima, 2001's Lateralus, and 10,000 Days have been available via streaming services.
Last week the band revealed a new Tool logo in a video teaser, while last month Tool headlined the UK's Download Festival, performing a set that included two previously unreleased tracks, Descending and Invisible. Both are presumed to be on the new album.
FEAR INOCULUM, Aug 30th, 2019 Album Art, Lead Track, and Pre-Order info TBA. Thank you for your patience. pic.twitter.com/DxDM5j5D8XJuly 29, 2019