algebra depends on representable-functors (deprecated), which leads to dependency hell

[maltem]

algebra depends on representable-functors (which you deprecated), and this leads to dependency hell: Currently, with ghc 7.8.2,

• cabal install algebra only finds a plan involving array-0.4.0.1, which apparently gives a conflict with regard to template-haskell,
• cabal install algebra --allow-newer is too optimistic and leads to genuine compile errors.