diff --git a/pkgs/development/compilers/elm/default.nix b/pkgs/development/compilers/elm/default.nix
index 333c8c20270..ebee80cba53 100644
--- a/pkgs/development/compilers/elm/default.nix
+++ b/pkgs/development/compilers/elm/default.nix
@@ -1,5 +1,5 @@
 { lib, stdenv, pkgs
-, haskell, nodejs
+, haskell, haskellPackages, nodejs
 , fetchurl, fetchpatch, makeWrapper, writeScriptBin
   # Rust dependecies
 , rustPlatform, openssl, pkg-config, Security
@@ -7,7 +7,7 @@
 let
   fetchElmDeps = import ./fetchElmDeps.nix { inherit stdenv lib fetchurl; };
 
-  hsPkgs = haskell.packages.ghc8103.override {
+  hsPkgs = haskellPackages.override {
     overrides = self: super: with haskell.lib; with lib;
       let elmPkgs = rec {
             elm = overrideCabal (self.callPackage ./packages/elm.nix { }) (drv: {
diff --git a/pkgs/development/compilers/ghc/8.10.3.nix b/pkgs/development/compilers/ghc/8.10.3.nix
deleted file mode 100644
index fe160259f2b..00000000000
--- a/pkgs/development/compilers/ghc/8.10.3.nix
+++ /dev/null
@@ -1,264 +0,0 @@
-{ lib, stdenv, pkgsBuildTarget, targetPackages
-
-# build-tools
-, bootPkgs
-, autoconf, automake, coreutils, fetchpatch, fetchurl, perl, python3, m4, sphinx
-, bash
-
-, libiconv ? null, ncurses
-
-, # GHC can be built with system libffi or a bundled one.
-  libffi ? null
-
-, useLLVM ? !stdenv.targetPlatform.isx86
-, # LLVM is conceptually a run-time-only depedendency, but for
-  # non-x86, we need LLVM to bootstrap later stages, so it becomes a
-  # build-time dependency too.
-  buildLlvmPackages, llvmPackages
-
-, # If enabled, GHC will be built with the GPL-free but slower integer-simple
-  # library instead of the faster but GPLed integer-gmp library.
-  enableIntegerSimple ? !(lib.any (lib.meta.platformMatch stdenv.hostPlatform) gmp.meta.platforms), gmp
-
-, # If enabled, use -fPIC when compiling static libs.
-  enableRelocatedStaticLibs ? stdenv.targetPlatform != stdenv.hostPlatform
-
-  # aarch64 outputs otherwise exceed 2GB limit
-, enableProfiledLibs ? !stdenv.targetPlatform.isAarch64
-
-, # Whether to build dynamic libs for the standard library (on the target
-  # platform). Static libs are always built.
-  enableShared ? !stdenv.targetPlatform.isWindows && !stdenv.targetPlatform.useiOSPrebuilt
-
-, # Whether to build terminfo.
-  enableTerminfo ? !stdenv.targetPlatform.isWindows
-
-, # What flavour to build. An empty string indicates no
-  # specific flavour and falls back to ghc default values.
-  ghcFlavour ? lib.optionalString (stdenv.targetPlatform != stdenv.hostPlatform)
-    (if useLLVM then "perf-cross" else "perf-cross-ncg")
-
-, # Whether to disable the large address space allocator
-  # necessary fix for iOS: https://www.reddit.com/r/haskell/comments/4ttdz1/building_an_osxi386_to_iosarm64_cross_compiler/d5qvd67/
-  disableLargeAddressSpace ? stdenv.targetPlatform.isDarwin && stdenv.targetPlatform.isAarch64
-}:
-
-assert !enableIntegerSimple -> gmp != null;
-
-let
-  inherit (stdenv) buildPlatform hostPlatform targetPlatform;
-
-  inherit (bootPkgs) ghc;
-
-  # TODO(@Ericson2314) Make unconditional
-  targetPrefix = lib.optionalString
-    (targetPlatform != hostPlatform)
-    "${targetPlatform.config}-";
-
-  buildMK = ''
-    BuildFlavour = ${ghcFlavour}
-    ifneq \"\$(BuildFlavour)\" \"\"
-    include mk/flavours/\$(BuildFlavour).mk
-    endif
-    DYNAMIC_GHC_PROGRAMS = ${if enableShared then "YES" else "NO"}
-    INTEGER_LIBRARY = ${if enableIntegerSimple then "integer-simple" else "integer-gmp"}
-  '' + lib.optionalString (targetPlatform != hostPlatform) ''
-    Stage1Only = ${if targetPlatform.system == hostPlatform.system then "NO" else "YES"}
-    CrossCompilePrefix = ${targetPrefix}
-    HADDOCK_DOCS = NO
-    BUILD_SPHINX_HTML = NO
-    BUILD_SPHINX_PDF = NO
-  '' + lib.optionalString (!enableProfiledLibs) ''
-    GhcLibWays = "v dyn"
-  '' + lib.optionalString enableRelocatedStaticLibs ''
-    GhcLibHcOpts += -fPIC
-    GhcRtsHcOpts += -fPIC
-  '' + lib.optionalString targetPlatform.useAndroidPrebuilt ''
-    EXTRA_CC_OPTS += -std=gnu99
-  '';
-
-  # Splicer will pull out correct variations
-  libDeps = platform: lib.optional enableTerminfo ncurses
-    ++ [libffi]
-    ++ lib.optional (!enableIntegerSimple) gmp
-    ++ lib.optional (platform.libc != "glibc" && !targetPlatform.isWindows) libiconv;
-
-  toolsForTarget = [
-    pkgsBuildTarget.targetPackages.stdenv.cc
-  ] ++ lib.optional useLLVM buildLlvmPackages.llvm;
-
-  targetCC = builtins.head toolsForTarget;
-
-  # ld.gold is disabled for musl libc due to https://sourceware.org/bugzilla/show_bug.cgi?id=23856
-  # see #84670 and #49071 for more background.
-  useLdGold = targetPlatform.isLinux && !(targetPlatform.useLLVM or false) && !targetPlatform.isMusl;
-
-in
-stdenv.mkDerivation (rec {
-  version = "8.10.3";
-  name = "${targetPrefix}ghc-${version}";
-
-  src = fetchurl {
-    url = "https://downloads.haskell.org/ghc/${version}/ghc-${version}-src.tar.xz";
-    sha256 = "0cdrdvs5qnqr93cr9zvrlfjv2xr671kjjghnsw4afa4hahcq7p6c";
-  };
-
-  enableParallelBuilding = true;
-
-  outputs = [ "out" "doc" ];
-
-  patches = [
-    # See upstream patch at
-    # https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4885. Since we build
-    # from source distributions, the auto-generated configure script needs to be
-    # patched as well, therefore we use an in-tree patch instead of pulling the
-    # upstream patch. Don't forget to check backport status of the upstream patch
-    # when adding new GHC releases in nixpkgs.
-    ./respect-ar-path.patch
-  ] ++ lib.optionals stdenv.isDarwin [
-    # Make Block.h compile with c++ compilers. Remove with the next release
-    (fetchpatch {
-      url = "https://gitlab.haskell.org/ghc/ghc/-/commit/97d0b0a367e4c6a52a17c3299439ac7de129da24.patch";
-      sha256 = "0r4zjj0bv1x1m2dgxp3adsf2xkr94fjnyj1igsivd9ilbs5ja0b5";
-    })
-  ];
-
-  postPatch = "patchShebangs .";
-
-  # GHC is a bit confused on its cross terminology.
-  preConfigure = ''
-    for env in $(env | grep '^TARGET_' | sed -E 's|\+?=.*||'); do
-      export "''${env#TARGET_}=''${!env}"
-    done
-    # GHC is a bit confused on its cross terminology, as these would normally be
-    # the *host* tools.
-    export CC="${targetCC}/bin/${targetCC.targetPrefix}cc"
-    export CXX="${targetCC}/bin/${targetCC.targetPrefix}cxx"
-    # Use gold to work around https://sourceware.org/bugzilla/show_bug.cgi?id=16177
-    export LD="${targetCC.bintools}/bin/${targetCC.bintools.targetPrefix}ld${lib.optionalString useLdGold ".gold"}"
-    export AS="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}as"
-    export AR="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ar"
-    export NM="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}nm"
-    export RANLIB="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}ranlib"
-    export READELF="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}readelf"
-    export STRIP="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}strip"
-
-    echo -n "${buildMK}" > mk/build.mk
-    sed -i -e 's|-isysroot /Developer/SDKs/MacOSX10.5.sdk||' configure
-  '' + lib.optionalString (!stdenv.isDarwin) ''
-    export NIX_LDFLAGS+=" -rpath $out/lib/ghc-${version}"
-  '' + lib.optionalString stdenv.isDarwin ''
-    export NIX_LDFLAGS+=" -no_dtrace_dof"
-  '' + lib.optionalString targetPlatform.useAndroidPrebuilt ''
-    sed -i -e '5i ,("armv7a-unknown-linux-androideabi", ("e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64", "cortex-a8", ""))' llvm-targets
-  '' + lib.optionalString targetPlatform.isMusl ''
-      echo "patching llvm-targets for musl targets..."
-      echo "Cloning these existing '*-linux-gnu*' targets:"
-      grep linux-gnu llvm-targets | sed 's/^/  /'
-      echo "(go go gadget sed)"
-      sed -i 's,\(^.*linux-\)gnu\(.*\)$,\0\n\1musl\2,' llvm-targets
-      echo "llvm-targets now contains these '*-linux-musl*' targets:"
-      grep linux-musl llvm-targets | sed 's/^/  /'
-
-      echo "And now patching to preserve '-musleabi' as done with '-gnueabi'"
-      # (aclocal.m4 is actual source, but patch configure as well since we don't re-gen)
-      for x in configure aclocal.m4; do
-        substituteInPlace $x \
-          --replace '*-android*|*-gnueabi*)' \
-                    '*-android*|*-gnueabi*|*-musleabi*)'
-      done
-  '';
-
-  # TODO(@Ericson2314): Always pass "--target" and always prefix.
-  configurePlatforms = [ "build" "host" ]
-    ++ lib.optional (targetPlatform != hostPlatform) "target";
-
-  # `--with` flags for libraries needed for RTS linker
-  configureFlags = [
-    "--datadir=$doc/share/doc/ghc"
-    "--with-curses-includes=${ncurses.dev}/include" "--with-curses-libraries=${ncurses.out}/lib"
-  ] ++ lib.optionals (libffi != null) [
-    "--with-system-libffi"
-    "--with-ffi-includes=${targetPackages.libffi.dev}/include"
-    "--with-ffi-libraries=${targetPackages.libffi.out}/lib"
-  ] ++ lib.optionals (targetPlatform == hostPlatform && !enableIntegerSimple) [
-    "--with-gmp-includes=${targetPackages.gmp.dev}/include"
-    "--with-gmp-libraries=${targetPackages.gmp.out}/lib"
-  ] ++ lib.optionals (targetPlatform == hostPlatform && hostPlatform.libc != "glibc" && !targetPlatform.isWindows) [
-    "--with-iconv-includes=${libiconv}/include"
-    "--with-iconv-libraries=${libiconv}/lib"
-  ] ++ lib.optionals (targetPlatform != hostPlatform) [
-    "--enable-bootstrap-with-devel-snapshot"
-  ] ++ lib.optionals useLdGold [
-    "CFLAGS=-fuse-ld=gold"
-    "CONF_GCC_LINKER_OPTS_STAGE1=-fuse-ld=gold"
-    "CONF_GCC_LINKER_OPTS_STAGE2=-fuse-ld=gold"
-  ] ++ lib.optionals (disableLargeAddressSpace) [
-    "--disable-large-address-space"
-  ];
-
-  # Make sure we never relax`$PATH` and hooks support for compatibility.
-  strictDeps = true;
-
-  # Don’t add -liconv to LDFLAGS automatically so that GHC will add it itself.
-  dontAddExtraLibs = true;
-
-  nativeBuildInputs = [
-    perl autoconf automake m4 python3 sphinx
-    ghc bootPkgs.alex bootPkgs.happy bootPkgs.hscolour
-  ];
-
-  # For building runtime libs
-  depsBuildTarget = toolsForTarget;
-
-  buildInputs = [ perl bash ] ++ (libDeps hostPlatform);
-
-  propagatedBuildInputs = [ targetPackages.stdenv.cc ]
-    ++ lib.optional useLLVM llvmPackages.llvm;
-
-  depsTargetTarget = map lib.getDev (libDeps targetPlatform);
-  depsTargetTargetPropagated = map (lib.getOutput "out") (libDeps targetPlatform);
-
-  # required, because otherwise all symbols from HSffi.o are stripped, and
-  # that in turn causes GHCi to abort
-  stripDebugFlags = [ "-S" ] ++ lib.optional (!targetPlatform.isDarwin) "--keep-file-symbols";
-
-  checkTarget = "test";
-
-  hardeningDisable = [ "format" ] ++ lib.optional stdenv.targetPlatform.isMusl "pie";
-
-  postInstall = ''
-    # Install the bash completion file.
-    install -D -m 444 utils/completion/ghc.bash $out/share/bash-completion/completions/${targetPrefix}ghc
-
-    # Patch scripts to include "readelf" and "cat" in $PATH.
-    for i in "$out/bin/"*; do
-      test ! -h $i || continue
-      egrep --quiet '^#!' <(head -n 1 $i) || continue
-      sed -i -e '2i export PATH="$PATH:${lib.makeBinPath [ targetPackages.stdenv.cc.bintools coreutils ]}"' $i
-    done
-  '';
-
-  passthru = {
-    inherit bootPkgs targetPrefix;
-
-    inherit llvmPackages;
-    inherit enableShared;
-
-    # Our Cabal compiler name
-    haskellCompilerName = "ghc-${version}";
-  };
-
-  meta = {
-    homepage = "http://haskell.org/ghc";
-    description = "The Glasgow Haskell Compiler";
-    maintainers = with lib.maintainers; [ marcweber andres peti ];
-    timeout = 24 * 3600;
-    inherit (ghc.meta) license platforms;
-  };
-
-} // lib.optionalAttrs targetPlatform.useAndroidPrebuilt {
-  dontStrip = true;
-  dontPatchELF = true;
-  noAuditTmpdir = true;
-})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index e9bcdc39232..da70103ad6b 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -65,16 +65,6 @@ in {
       buildLlvmPackages = buildPackages.llvmPackages_7;
       llvmPackages = pkgs.llvmPackages_7;
     };
-    ghc8103 = callPackage ../development/compilers/ghc/8.10.3.nix {
-      # aarch64 ghc865Binary gets SEGVs due to haskell#15449 or similar
-      bootPkgs = if stdenv.isAarch64 || stdenv.isAarch32 then
-          packages.ghc8102BinaryMinimal
-        else
-          packages.ghc865Binary;
-      inherit (buildPackages.python3Packages) sphinx;
-      buildLlvmPackages = buildPackages.llvmPackages_9;
-      llvmPackages = pkgs.llvmPackages_9;
-    };
     ghc8104 = callPackage ../development/compilers/ghc/8.10.4.nix {
       # aarch64 ghc865Binary gets SEGVs due to haskell#15449 or similar
       bootPkgs = if stdenv.isAarch64 || stdenv.isAarch32 then
@@ -149,11 +139,6 @@ in {
       ghc = bh.compiler.ghc884;
       compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-8.8.x.nix { };
     };
-    ghc8103 = callPackage ../development/haskell-modules {
-      buildHaskellPackages = bh.packages.ghc8103;
-      ghc = bh.compiler.ghc8103;
-      compilerConfig = callPackage ../development/haskell-modules/configuration-ghc-8.10.x.nix { };
-    };
     ghc8104 = callPackage ../development/haskell-modules {
       buildHaskellPackages = bh.packages.ghc8104;
       ghc = bh.compiler.ghc8104;