diff --git a/pkgs/development/tools/build-managers/sbt/0.12.4.nix b/pkgs/development/tools/build-managers/sbt/0.12.4.nix
deleted file mode 100644
index 9c02fcd0b3f..00000000000
--- a/pkgs/development/tools/build-managers/sbt/0.12.4.nix
+++ /dev/null
@@ -1,29 +0,0 @@
-{ stdenv, fetchurl, jre }:
-
-stdenv.mkDerivation rec {
-  name = "sbt-${version}";
-  version = "0.12.14";
-
-  src = fetchurl {
-    url = "https://dl.bintray.com/sbt/native-packages/sbt/${version}/${name}.tgz";
-    sha256 = "5907af5a3db5e9090024c91e8b6189cd2143841b08c4688542a2efbc9023ac1a";
-  };
-
-  patchPhase = ''
-    echo -java-home ${jre.home} >>conf/sbtopts
-  '';
-
-  installPhase = ''
-    mkdir -p $out/share/sbt $out/bin
-    cp -ra . $out/share/sbt
-    ln -s $out/share/sbt/bin/sbt $out/bin/
-  '';
-
-  meta = with stdenv.lib; {
-    homepage = http://www.scala-sbt.org/;
-    license = licenses.bsd3;
-    description = "A build tool for Scala, Java and more";
-    maintainers = with maintainers; [ heel ];
-    platforms = platforms.unix;
-  };
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f716234dea2..8cbc4eee2cb 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6824,7 +6824,6 @@ with pkgs;
   scons = callPackage ../development/tools/build-managers/scons { };
 
   sbt = callPackage ../development/tools/build-managers/sbt { };
-  sbt_0_12_4 = callPackage ../development/tools/build-managers/sbt/0.12.4.nix { };
   simpleBuildTool = sbt;
 
   shards = callPackage ../development/tools/build-managers/shards { };
@@ -10800,7 +10799,7 @@ with pkgs;
 
   mongodb248 = callPackage ../servers/nosql/mongodb/2.4.8.nix { };
 
-  riak = callPackage ../servers/nosql/riak/2.2.0.nix { 
+  riak = callPackage ../servers/nosql/riak/2.2.0.nix {
     erlang = erlang_basho_R16B02;
   };