diff --git a/pkgs/development/libraries/haskell/type-level-natural-number/default.nix b/pkgs/development/libraries/haskell/type-level-natural-number/default.nix
index 8dff0ffd58f..62690186ee8 100644
--- a/pkgs/development/libraries/haskell/type-level-natural-number/default.nix
+++ b/pkgs/development/libraries/haskell/type-level-natural-number/default.nix
@@ -2,10 +2,10 @@
 
 cabal.mkDerivation (self: {
   pname = "type-level-natural-number";
-  version = "1.1.1";
-  sha256 = "1zc26nckpcixxp1m818jhzi3dj1ysnjfc2xliq4rpmf5583k6mjw";
+  version = "2.0";
+  sha256 = "17zgm5ys1z61kxxczz3bzi9m3c48py6pvyx3cqk3xlh1w7n58ryk";
   meta = {
-    description = "Simple, Haskell 2010-compatible type level natural numbers";
+    description = "Simple type level natural numbers";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
   };