diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix
index c541c852df36..1647987c6b21 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.10.x.nix
@@ -105,14 +105,9 @@ self: super: {
   ghc-lib-parser-ex = doDistribute self.ghc-lib-parser-ex_9_2_1_1;
   ghc-lib = doDistribute self.ghc-lib_9_2_8_20230729;
 
-  mod = super.mod_0_1_2_2;
   path-io = doJailbreak super.path-io;
 
-
-  ormolu = self.ormolu_0_5_0_1;
-  fourmolu = dontCheck self.fourmolu_0_9_0_0;
   hlint = self.hlint_3_4_1;
-  stylish-haskell = doJailbreak self.stylish-haskell_0_14_3_0;
 
   mime-string = disableOptimization super.mime-string;