diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
index cadef334c5ed..6fd85c971e23 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.6.x.nix
@@ -86,10 +86,6 @@ self: super: {
   # cabal2spec needs a recent version of Cabal
   cabal2spec = super.cabal2spec.overrideScope (self: super: { Cabal = self.Cabal_3_2_1_0; });
 
-  # https://github.com/pikajude/stylish-cabal/issues/12
-  stylish-cabal = doDistribute (markUnbroken (super.stylish-cabal.override { haddock-library = self.haddock-library_1_7_0; }));
-  haddock-library_1_7_0 = dontCheck super.haddock-library_1_7_0;
-
   # ghc versions prior to 8.8.x needs additional dependency to compile successfully.
   ghc-lib-parser-ex = addBuildDepend self.ghc-lib-parser super.ghc-lib-parser-ex;
 
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index bd60eb375d44..e7c6f672ad6f 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -62,7 +62,6 @@ extra-packages:
   - ghc-lib-parser == 9.8.*             # 2024-05-19: preserve for GHC 9.8
   - ghc-lib-parser-ex == 9.2.*          # 2022-07-13: preserve for GHC 8.10, 9.0
   - ghc-lib-parser-ex == 9.8.*          # 2024-05-19: preserve for GHC 9.8
-  - haddock-library ==1.7.*             # required by stylish-cabal-0.5.0.0
   - happy == 1.19.12                    # for ghcjs
   - hashable == 1.4.7.0                 # allows GHC 9.10
   - ansi-wl-pprint >= 0.6 && < 0.7      # 2024-03-23: required for ghcjs