[Haskell-cafe] Build failure on Hackage, missing syb

Hi all, What causes the following build failure on Hackage? *** setup configure

Configuring instant-generics-0.3.2... cabal-setup: At least the following dependencies are missing: syb <0.4

This is in package instant-generics-0.3.2http://hackage.haskell.org/packages/archive/instant-generics/0.3.2/logs/fail.... The syb package built fine on Hackage. Previously, packages depending on syb built fine too (e.g. http://hackage.haskell.org/package/syz). So why is instant-generics-0.3.2 not building? Thanks, Pedro