New versions of Warp do not export Connection

postgrest.cabal

@@ -58,7 +58,7 @@ executable postgrest
                      , wai-cors
                      , wai-extra
                      , wai-middleware-static >= 0.6.0
-                     , warp >= 3.0.2
+                     , warp >= 3.1.0
                      , HTTP, http-types
                      , MissingH
                      , Ranged-sets

src/PostgREST/Main.hs

@@ -25,7 +25,7 @@ import qualified Hasql.Decoders                       as HD
 import qualified Hasql.Encoders                       as HE
 import qualified Network.HTTP.Types.Status            as HT
 import           Network.Wai
-import           Network.Wai.Handler.Warp             hiding (Connection)
+import           Network.Wai.Handler.Warp
 import           Network.Wai.Middleware.RequestLogger (logStdout)
 import           System.IO                            (BufferMode (..),
                                                        hSetBuffering, stderr,