diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
index e9d36f92948e..e73cbc86a508 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/main.yaml
@@ -25,7 +25,6 @@
 # not work.
 # keep-sorted start skip_lines=1 case=no numeric=yes
 default-package-overrides:
-  - chs-cabal == 0.1.1.2 # matches Cabal 3.12 (GHC 9.10)
   - clash-lib-hedgehog < 1.9 # needs to match clash-lib from Stackage
   # 2025-12-26: Needs to match egison-pattern-src from Stackage
   - egison-pattern-src-th-mode < 0.2.2
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index 4e3f937e6f6a..09571001e561 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -143204,29 +143204,6 @@ self: {
   ) { };
 
   chs-cabal = callPackage (
-    {
-      mkDerivation,
-      base,
-      Cabal,
-      chs-deps,
-    }:
-    mkDerivation {
-      pname = "chs-cabal";
-      version = "0.1.1.2";
-      sha256 = "1qh234dx3d3l3nxb67alv0ggwqipp1502krq11fgq3hp0jhcm8b8";
-      revision = "1";
-      editedCabalFile = "08p3vj0v1i546m1allza5wl7q038qgqvb4b4p3p501v097yrvh6z";
-      libraryHaskellDepends = [
-        base
-        Cabal
-        chs-deps
-      ];
-      description = "Cabal with c2hs dependencies";
-      license = lib.licenses.bsd3;
-    }
-  ) { };
-
-  chs-cabal_1_0_0_0 = callPackage (
     {
       mkDerivation,
       base,
@@ -143244,7 +143221,6 @@ self: {
       ];
       description = "Cabal with c2hs dependencies";
       license = lib.licenses.bsd3;
-      hydraPlatforms = lib.platforms.none;
     }
   ) { };