diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index 3b42dcaf5095..963426fd8af3 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -94,6 +94,8 @@ default-package-overrides:
   - autoapply < 0.4.1.1
   # 2021-10-22: 1.8 breaks shake-bench
   - SVGFonts < 1.8
+  # 2021-11-09: 0.20.6 can't be built with aeson < 2.0 which is a pain to override at the moment
+  - futhark < 0.20.6
 
 extra-packages:
   - base16-bytestring < 1               # required for cabal-install etc.
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index dfd36ca3411e..5b4a0ddc231c 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -99799,6 +99799,46 @@ self: {
      }) {};
 
   "futhark" = callPackage
+    ({ mkDerivation, aeson, alex, ansi-terminal, array, base
+     , base16-bytestring, binary, blaze-html, bmp, bytestring
+     , bytestring-to-vector, cmark-gfm, containers, cryptohash-md5
+     , directory, directory-tree, dlist, file-embed, filepath, free
+     , futhark-data, futhark-server, githash, half, happy, haskeline
+     , language-c-quote, mainland-pretty, megaparsec, mtl
+     , neat-interpolation, parallel, parser-combinators, process
+     , process-extras, QuickCheck, random, regex-tdfa, srcloc, tasty
+     , tasty-hunit, tasty-quickcheck, template-haskell, temporary
+     , terminal-size, text, time, transformers, unordered-containers
+     , vector, vector-binary-instances, versions, zip-archive, zlib
+     }:
+     mkDerivation {
+       pname = "futhark";
+       version = "0.20.5";
+       sha256 = "0wdpi1lr6cglwig194i9l6jmb54lh5qhwfhx8nn7z2kmww0qpmbv";
+       isLibrary = true;
+       isExecutable = true;
+       libraryHaskellDepends = [
+         aeson ansi-terminal array base base16-bytestring binary blaze-html
+         bmp bytestring bytestring-to-vector cmark-gfm containers
+         cryptohash-md5 directory directory-tree dlist file-embed filepath
+         free futhark-data futhark-server githash half haskeline
+         language-c-quote mainland-pretty megaparsec mtl neat-interpolation
+         parallel process process-extras random regex-tdfa srcloc
+         template-haskell temporary terminal-size text time transformers
+         unordered-containers vector vector-binary-instances versions
+         zip-archive zlib
+       ];
+       libraryToolDepends = [ alex happy ];
+       executableHaskellDepends = [ base text ];
+       testHaskellDepends = [
+         base containers megaparsec mtl parser-combinators QuickCheck tasty
+         tasty-hunit tasty-quickcheck text
+       ];
+       description = "An optimising compiler for a functional, array-oriented language";
+       license = lib.licenses.isc;
+     }) {};
+
+  "futhark_0_20_6" = callPackage
     ({ mkDerivation, aeson, alex, ansi-terminal, array, base
      , base16-bytestring, binary, blaze-html, bmp, bytestring
      , bytestring-to-vector, cmark-gfm, containers, cryptohash-md5
@@ -99835,6 +99875,7 @@ self: {
        ];
        description = "An optimising compiler for a functional, array-oriented language";
        license = lib.licenses.isc;
+       hydraPlatforms = lib.platforms.none;
      }) {};
 
   "futhark-data" = callPackage