diff --git a/pkgs/development/libraries/haskell/MonadRandom/0.1.13.nix b/pkgs/development/libraries/haskell/MonadRandom/0.1.13.nix
deleted file mode 100644
index 0cbd926b1f1..00000000000
--- a/pkgs/development/libraries/haskell/MonadRandom/0.1.13.nix
+++ /dev/null
@@ -1,16 +0,0 @@
-# This file was auto-generated by cabal2nix. Please do NOT edit manually!
-
-{ cabal, mtl, random, transformers }:
-
-cabal.mkDerivation (self: {
-  pname = "MonadRandom";
-  version = "0.1.13";
-  sha256 = "1pi12ymsbl2l0ly3ggihg8r0ac87ax267m419cga60wp5ry5zbnk";
-  buildDepends = [ mtl random transformers ];
-  meta = {
-    description = "Random-number generation monad";
-    license = "unknown";
-    platforms = self.ghc.meta.platforms;
-    hydraPlatforms = self.stdenv.lib.platforms.none;
-  };
-})
diff --git a/pkgs/top-level/haskell-defaults.nix b/pkgs/top-level/haskell-defaults.nix
index e6773ea1fda..e53e21fc68d 100644
--- a/pkgs/top-level/haskell-defaults.nix
+++ b/pkgs/top-level/haskell-defaults.nix
@@ -23,7 +23,7 @@
   ghc783Prefs = self : super : ghcHEADPrefs self super // {
     cabalInstall_1_20_0_3 = super.cabalInstall_1_20_0_3.override { Cabal = self.Cabal_1_20_0_2; };
     codex = super.codex.override { hackageDb = super.hackageDb.override { Cabal = self.Cabal_1_20_0_2; }; };
-    MonadRandom = self.MonadRandom_0_1_13; # requires transformers >= 0.4.x
+    MonadRandom = self.MonadRandom_0_2_0_1; # newer versions require transformers >= 0.4.x
     mtl = self.mtl_2_1_3_1;
   };
 
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 406c1220a11..633742f463e 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -1667,7 +1667,6 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   MonadPrompt = callPackage ../development/libraries/haskell/MonadPrompt {};
 
-  MonadRandom_0_1_13 = callPackage ../development/libraries/haskell/MonadRandom/0.1.13.nix {};
   MonadRandom_0_2_0_1 = callPackage ../development/libraries/haskell/MonadRandom/0.2.0.1.nix {};
   MonadRandom_0_3 = callPackage ../development/libraries/haskell/MonadRandom/0.3.nix {};
   MonadRandom = self.MonadRandom_0_3;