haskell/hackage-server — pull request #272 by DanielG (2014-10-24 20:36:38+00:00)
Title: Relax aeson dependency, fix #73

I haven't actually tested this since I don't know exactly what was broken by aeson >= 0.6.2.0.

According to https://github.com/bos/aeson/issues/141#issuecomment-24300068 this should fix #73 though.