From d4f47af75aebc1f24b664a7f9d6246bad1f374a0 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sat, 14 Dec 2013 13:26:50 +0100
Subject: [PATCH] haskell-quickcheck-io: this package needs recent versions of
 QuickCheck and HUnit

---
 pkgs/top-level/haskell-packages.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 5e4488add3f..e8fac4ab52e 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1828,7 +1828,10 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   quickcheckInstances = callPackage ../development/libraries/haskell/quickcheck-instances {};
 
-  quickcheckIo = callPackage ../development/libraries/haskell/quickcheck-io {};
+  quickcheckIo = callPackage ../development/libraries/haskell/quickcheck-io {
+    HUnit = self.HUnit_1_2_5_2;
+    QuickCheck = self.QuickCheck2;
+  };
 
   qrencode = callPackage ../development/libraries/haskell/qrencode {
     inherit (pkgs) qrencode;