diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index 7f337014ff08..3b42dcaf5095 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -123,6 +123,9 @@ extra-packages:
   - ShellCheck == 0.7.1                 # 2021-05-09: haskell-ci 0.12.1 pins this version
   - cabal-install-parsers == 0.4.2      # 2021-09-04: needed haskell-ci by until it upgrades to Cabal >= 3.6
   - ghc-api-compat == 8.6               # 2021-09-07: preserve for GHC 8.8.4
+  - ghc-lib == 9.0.1.*                  # 2021-11-05: Need one GHC 9.0.1 compatible version
+  - ghc-lib-parser == 9.0.1.*           # 2021-11-05: Need one GHC 9.0.1 compatible version
+  - ghc-lib-parser-ex == 9.0.*          # 2021-11-05: Need one GHC 9.0.1 compatible version
 
 package-maintainers:
   abbradar:
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index e7eac912f9e0..ca1193a97b6e 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -104012,6 +104012,27 @@ self: {
        license = lib.licenses.bsd3;
      }) {};
 
+  "ghc-lib_9_0_1_20210324" = callPackage
+    ({ mkDerivation, alex, array, base, binary, bytestring, containers
+     , deepseq, directory, exceptions, filepath, ghc-lib-parser
+     , ghc-prim, happy, hpc, pretty, process, time, transformers, unix
+     }:
+     mkDerivation {
+       pname = "ghc-lib";
+       version = "9.0.1.20210324";
+       sha256 = "1qzsm132jk84nvkyrmhmnhpccb2f07miwdcq7h11ljmd3c4c577a";
+       enableSeparateDataOutput = true;
+       libraryHaskellDepends = [
+         array base binary bytestring containers deepseq directory
+         exceptions filepath ghc-lib-parser ghc-prim hpc pretty process time
+         transformers unix
+       ];
+       libraryToolDepends = [ alex happy ];
+       description = "The GHC API, decoupled from GHC versions";
+       license = lib.licenses.bsd3;
+       hydraPlatforms = lib.platforms.none;
+     }) {};
+
   "ghc-lib_9_2_1_20211101" = callPackage
     ({ mkDerivation, alex, array, base, binary, bytestring, containers
      , deepseq, directory, exceptions, filepath, ghc-lib-parser
@@ -104053,6 +104074,27 @@ self: {
        license = lib.licenses.bsd3;
      }) {};
 
+  "ghc-lib-parser_9_0_1_20210324" = callPackage
+    ({ mkDerivation, alex, array, base, binary, bytestring, containers
+     , deepseq, directory, exceptions, filepath, ghc-prim, happy, hpc
+     , pretty, process, time, transformers, unix
+     }:
+     mkDerivation {
+       pname = "ghc-lib-parser";
+       version = "9.0.1.20210324";
+       sha256 = "1hl20lz8r9yhgh6hlakmbqp637h49mq3sdxciy4vsz3nhzy7nqqm";
+       enableSeparateDataOutput = true;
+       libraryHaskellDepends = [
+         array base binary bytestring containers deepseq directory
+         exceptions filepath ghc-prim hpc pretty process time transformers
+         unix
+       ];
+       libraryToolDepends = [ alex happy ];
+       description = "The GHC API, decoupled from GHC versions";
+       license = lib.licenses.bsd3;
+       hydraPlatforms = lib.platforms.none;
+     }) {};
+
   "ghc-lib-parser_9_2_1_20211101" = callPackage
     ({ mkDerivation, alex, array, base, binary, bytestring, containers
      , deepseq, directory, exceptions, filepath, ghc-prim, happy, parsec
@@ -104094,6 +104136,26 @@ self: {
        license = lib.licenses.bsd3;
      }) {};
 
+  "ghc-lib-parser-ex_9_0_0_4" = callPackage
+    ({ mkDerivation, base, bytestring, containers, directory, extra
+     , filepath, ghc-lib-parser, tasty, tasty-hunit, uniplate
+     }:
+     mkDerivation {
+       pname = "ghc-lib-parser-ex";
+       version = "9.0.0.4";
+       sha256 = "11j1k26h7px9fydrwi5x9d9ckivc4xdsw4gzb7xhpzdq60f8af66";
+       libraryHaskellDepends = [
+         base bytestring containers ghc-lib-parser uniplate
+       ];
+       testHaskellDepends = [
+         base directory extra filepath ghc-lib-parser tasty tasty-hunit
+         uniplate
+       ];
+       description = "Algorithms on GHC parse trees";
+       license = lib.licenses.bsd3;
+       hydraPlatforms = lib.platforms.none;
+     }) {};
+
   "ghc-lib-parser-ex_9_2_0_1" = callPackage
     ({ mkDerivation, base, bytestring, containers, directory, extra
      , filepath, ghc-lib-parser, tasty, tasty-hunit, uniplate