diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.0.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.0.x.nix
index af34629e3196..55432ccdac50 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.0.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.0.x.nix
@@ -38,7 +38,7 @@ self: super: {
   binary = self.binary_0_7_6_1;
 
   # deepseq is not a core library for this compiler.
-  deepseq = self.deepseq_1_4_1_1;
+  deepseq = self.deepseq_1_4_1_2;
 
   # transformers is not a core library for this compiler.
   transformers = self.transformers_0_4_3_0;
diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.2.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.2.x.nix
index 1ec76e6fa192..c848a50cd366 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.2.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.2.x.nix
@@ -35,7 +35,7 @@ self: super: {
   unix = null;
 
   # deepseq is not a core library for this compiler.
-  deepseq = self.deepseq_1_4_1_1;
+  deepseq = self.deepseq_1_4_1_2;
 
   # transformers is not a core library for this compiler.
   transformers = self.transformers_0_4_3_0;