diff --git a/pkgs/development/compilers/gnatboot/default.nix b/pkgs/development/compilers/gnatboot/default.nix
index a23398d2e19d..b7fb8463d9cb 100644
--- a/pkgs/development/compilers/gnatboot/default.nix
+++ b/pkgs/development/compilers/gnatboot/default.nix
@@ -1,41 +1,37 @@
-{ lib, stdenv, fetchurl }:
+{ stdenv, lib, autoPatchelfHook, fetchzip, xz, ncurses5, readline, gmp, mpfr
+, expat, libipt, zlib, dejagnu, sourceHighlight, python3, elfutils, guile, glibc
+}:
 
-if stdenv.hostPlatform != stdenv.targetPlatform
-then builtins.throw "gnatboot can't cross-compile"
-else
+stdenv.mkDerivation rec {
+  pname = "gnatboot";
+  version = "11.2.0-4";
 
-stdenv.mkDerivation {
-  pname = "gentoo-gnatboot";
-  version = "4.1";
+  src = fetchzip {
+    url = "https://github.com/alire-project/GNAT-FSF-builds/releases/download/gnat-${version}/gnat-x86_64-linux-${version}.tar.gz";
+    hash = "sha256-8fMBJp6igH+Md5jE4LMubDmC4GLt4A+bZG/Xcz2LAJQ=";
+  };
 
-  src = if stdenv.hostPlatform.system == "i686-linux" then
-    fetchurl {
-      url = "mirror://gentoo/distfiles/gnatboot-4.1-i386.tar.bz2";
-      sha256 = "0665zk71598204bf521vw68i5y6ccqarq9fcxsqp7ccgycb4lysr";
-    }
-  else if stdenv.hostPlatform.system == "x86_64-linux" then
-    fetchurl {
-      url = "mirror://gentoo/distfiles/gnatboot-4.1-amd64.tar.bz2";
-      sha256 = "1li4d52lmbnfs6llcshlbqyik2q2q4bvpir0f7n38nagp0h6j0d4";
-    }
-  else
-    throw "Platform not supported";
-
-  dontStrip = 1;
+  nativeBuildInputs = [
+    autoPatchelfHook
+    dejagnu
+    elfutils
+    expat
+    glibc
+    gmp
+    guile
+    libipt
+    mpfr
+    ncurses5
+    python3
+    readline
+    sourceHighlight
+    xz
+    zlib
+  ];
 
   installPhase = ''
     mkdir -p $out
-    cp -R * $out
-
-    set +e
-    for a in $out/bin/* ; do
-      patchelf --interpreter $(cat $NIX_CC/nix-support/dynamic-linker) \
-        --set-rpath $(cat $NIX_CC/nix-support/orig-libc)/lib:$(cat $NIX_CC/nix-support/orig-cc)/lib64:$(cat $NIX_CC/nix-support/orig-cc)/lib $a
-    done
-    set -e
-
-    mv $out/bin/gnatgcc_2wrap $out/bin/gnatgcc
-    ln -s $out/bin/gnatgcc $out/bin/gcc
+    cp -ar * $out/
   '';
 
   passthru = {
@@ -46,10 +42,10 @@ stdenv.mkDerivation {
   };
 
   meta = with lib; {
-    homepage = "https://gentoo.org";
-    license = licenses.gpl3Plus;
-    maintainers = [ maintainers.lucus16 ];
-
-    platforms = platforms.linux;
+    description = "GNAT, the GNU Ada Translator";
+    homepage = "https://www.gnu.org/software/gnat";
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ ethindp ];
+    platforms = with platforms; [ "x86_64-linux" ];
   };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 62fe8ba56ae4..cfdd46db844e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -13196,7 +13196,7 @@ with pkgs;
     inherit (gnome2) libart_lgpl;
   });
 
-  gnat = gnat11;
+  gnat = gnat12;
 
   gnat6 = wrapCC (gcc6.cc.override {
     name = "gnat";
@@ -13227,7 +13227,7 @@ with pkgs;
     gnatboot =
       if stdenv.hostPlatform == stdenv.targetPlatform
          && stdenv.buildPlatform == stdenv.hostPlatform
-      then buildPackages.gnat6
+      then buildPackages.gnatboot
       else buildPackages.gnat9;
   });
 
@@ -13243,7 +13243,7 @@ with pkgs;
     gnatboot =
       if stdenv.hostPlatform == stdenv.targetPlatform
          && stdenv.buildPlatform == stdenv.hostPlatform
-      then buildPackages.gnat6
+      then buildPackages.gnatboot
       else buildPackages.gnat10;
   });
 
@@ -13259,7 +13259,7 @@ with pkgs;
     gnatboot =
       if stdenv.hostPlatform == stdenv.targetPlatform
          && stdenv.buildPlatform == stdenv.hostPlatform
-      then buildPackages.gnat6
+      then buildPackages.gnatboot
       else buildPackages.gnat11;
   });
 
@@ -13275,7 +13275,7 @@ with pkgs;
     gnatboot =
       if stdenv.hostPlatform == stdenv.targetPlatform
          && stdenv.buildPlatform == stdenv.hostPlatform
-      then buildPackages.gnat6
+      then buildPackages.gnatboot
       else buildPackages.gnat12;
   });