diff --git a/pkgs/development/libraries/haskell/bmp/1.2.2.1.nix b/pkgs/development/libraries/haskell/bmp/1.2.2.1.nix
deleted file mode 100644
index e018ac7a8d28..000000000000
--- a/pkgs/development/libraries/haskell/bmp/1.2.2.1.nix
+++ /dev/null
@@ -1,15 +0,0 @@
-{ cabal, binary }:
-
-cabal.mkDerivation (self: {
-  pname = "bmp";
-  version = "1.2.2.1";
-  sha256 = "0yxkkvpgavk9im9i9f6zpzc1n5nj2g4qsk4ck51aqz2fv6z1rhiy";
-  buildDepends = [ binary ];
-  meta = {
-    homepage = "http://code.ouroborus.net/bmp";
-    description = "Read and write uncompressed BMP image files";
-    license = self.stdenv.lib.licenses.mit;
-    platforms = self.ghc.meta.platforms;
-    maintainers = [ self.stdenv.lib.maintainers.andres ];
-  };
-})
diff --git a/pkgs/development/libraries/haskell/bmp/1.2.5.2.nix b/pkgs/development/libraries/haskell/bmp/default.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/bmp/1.2.5.2.nix
rename to pkgs/development/libraries/haskell/bmp/default.nix
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 533b12b3d981..54cc982c0725 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -674,9 +674,7 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   bloomfilter = callPackage ../development/libraries/haskell/bloomfilter {};
 
-  bmp_1_2_2_1 = callPackage ../development/libraries/haskell/bmp/1.2.2.1.nix {};
-  bmp_1_2_5_2 = callPackage ../development/libraries/haskell/bmp/1.2.5.2.nix {};
-  bmp = self.bmp_1_2_2_1;       # the latest version needs a very recent 'binary' library
+  bmp = callPackage ../development/libraries/haskell/bmp {};
 
   Boolean = callPackage ../development/libraries/haskell/Boolean {};