diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index fd81f36e379f..921544317048 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2954,7 +2954,7 @@ let
     builtins.substring 0 (builtins.stringLength "packages_") name == "packages_"
   ) haskell));
 
-  haskellPackages = haskellPackages_ghc763;
+  haskellPackages = haskellPackages_ghc783;
   haskellPlatform = haskellPlatformPackages."2013_2_0_0";
 
   haskellPackages_ghc6104 = haskell.packages_ghc6104;
@@ -2962,15 +2962,10 @@ let
   haskellPackages_ghc704  = haskell.packages_ghc704;
   haskellPackages_ghc722  = haskell.packages_ghc722;
   haskellPackages_ghc742  = haskell.packages_ghc742;
-  # For the default version, we build profiling versions of the libraries, too.
-  # The following three lines achieve that: the first two make Hydra build explicit
-  # profiling and non-profiling versions; the final respects the user-configured
-  # default setting.
-  haskellPackages_ghc763_no_profiling = recurseIntoAttrs haskell.packages_ghc763.noProfiling;
-  haskellPackages_ghc763_profiling    = recurseIntoAttrs haskell.packages_ghc763.profiling;
-  haskellPackages_ghc763              = recurseIntoAttrs haskell.packages_ghc763.highPrio;
-  # Reasonably current HEAD snapshot.
-  haskellPackages_ghc782 = haskell.packages_ghc782;
+  haskellPackages_ghc763  = haskell.packages_ghc763;
+  haskellPackages_ghc783_no_profiling = recurseIntoAttrs haskell.packages_ghc783.noProfiling;
+  haskellPackages_ghc783_profiling    = recurseIntoAttrs haskell.packages_ghc783.profiling;
+  haskellPackages_ghc783              = recurseIntoAttrs haskell.packages_ghc783.highPrio;
   haskellPackages_ghcHEAD = haskell.packages_ghcHEAD;
 
   haskellPlatformPackages = recurseIntoAttrs (import ../development/libraries/haskell/haskell-platform { inherit pkgs; });