diff --git a/pkgs/development/libraries/haskell/numtype-tf/default.nix b/pkgs/development/libraries/haskell/numtype-tf/default.nix
index ad7f2d98660..d317f57efce 100644
--- a/pkgs/development/libraries/haskell/numtype-tf/default.nix
+++ b/pkgs/development/libraries/haskell/numtype-tf/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "numtype-tf";
-  version = "0.1.1";
-  sha256 = "0aj24jlfcv4rsa0zfglsfgq9f0kxln32drypp66652ycffz3ip9a";
+  version = "0.1.2";
+  sha256 = "00bnz9k4nq21z4vax37qjv6ra2jvlshk0jlici1w8y9rx39zrjyx";
   meta = {
     homepage = "http://dimensional.googlecode.com/";
     description = "Type-level (low cardinality) integers, implemented using type families";