diff --git a/pkgs/development/compilers/ghc/7.4.2.nix b/pkgs/development/compilers/ghc/7.4.2.nix
index 660f316e120..ea44e49cca3 100644
--- a/pkgs/development/compilers/ghc/7.4.2.nix
+++ b/pkgs/development/compilers/ghc/7.4.2.nix
@@ -1,13 +1,13 @@
 { stdenv, fetchurl, ghc, perl, gmp, ncurses }:
 
 stdenv.mkDerivation rec {
-  version = "7.4.1.20120508";
+  version = "7.4.2";
 
   name = "ghc-${version}";
 
   src = fetchurl {
-    url = "http://haskell.org/ghc/dist/7.4.2-rc1/${name}-src.tar.bz2";
-    sha256 = "0i55003p6ns5vzx8dpni5jv45kxwjqqgspf76505l2vcilra8j2c";
+    url = "http://haskell.org/ghc/dist/7.4.2/${name}-src.tar.bz2";
+    sha256 = "0vc3zmxqi4gflssmj35n5c8idbvyrhd88abi50whbirwlf4i5vpj";
   };
 
   buildInputs = [ ghc perl gmp ncurses ];