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-rw-r--r--pkgs/top-level/haskell-defaults.nix2
1 files changed, 2 insertions, 0 deletions
diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index ad0da226542..ed7e33868ea 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -46,10 +46,12 @@
 
   ghc742Prefs = self : super : ghc763Prefs self super // {
     aeson = super.aeson.override { blazeBuilder = self.blazeBuilder; };
+    attoparsec = self.attoparsec_0_11_3_1;
     extensibleExceptions = null;        # core package in ghc <= 7.4.x
     hackageDb = super.hackageDb.override { Cabal = self.Cabal_1_16_0_3; };
     haddock = self.haddock_2_11_0;
     haskeline = super.haskeline.override { cabal = self.cabal.override { Cabal = self.Cabal_1_16_0_3; }; };
+    scientific = self.scientific_0_2_0_2;
   };
 
   ghc722Prefs = self : super : ghc742Prefs self super // {