diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 05a3fdd28cf0..49bbc382ceb9 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1615,6 +1615,15 @@ with haskellLib;
     '';
   }) (addExtraLibrary self.QuickCheck super.Chart-tests);
 
+  # 2026-01-17: too strict bounds on QuickCheck < 2.15
+  # https://github.com/hasufell/lzma-static/pull/15
+  xz = doJailbreak super.xz;
+
+  ghcup =
+    lib.throwIf pkgs.config.allowAliases
+      "ghcup cannot be used to install the haskell tool chain on NixOS because there is no compatible bindist. Please install ghc etc. via Nix. On non-NixOS systems you can use the ghcup shell installer"
+      super.ghcup;
+
   # This breaks because of version bounds, but compiles and runs fine.
   # Last commit is 5 years ago, so we likely won't get upstream fixed soon.
   # https://bitbucket.org/rvlm/hakyll-contrib-hyphenation/src/master/
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
index fa1332d5ba0d..04ddbcb4901f 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
@@ -7317,7 +7317,6 @@ broken-packages:
   - xslt # failure in job https://hydra.nixos.org/build/233225636 at 2023-09-02
   - xtea # failure in job https://hydra.nixos.org/build/282175333 at 2024-12-23
   - xxhash # failure in job https://hydra.nixos.org/build/233240335 at 2023-09-02
-  - xz # failure in job https://hydra.nixos.org/build/307523211 at 2025-09-19
   - y0l0bot # failure in job https://hydra.nixos.org/build/233212722 at 2023-09-02
   - yabi-muno # failure in job https://hydra.nixos.org/build/233246871 at 2023-09-02
   - yackage # failure in job https://hydra.nixos.org/build/233213393 at 2023-09-02
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/transitive-broken.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/transitive-broken.yaml
index d9637d9d853b..15e05673f1e1 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/transitive-broken.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/transitive-broken.yaml
@@ -3394,6 +3394,7 @@ dont-distribute-packages:
  - sydtest-amqp
  - sydtest-webdriver-screenshot
  - sydtest-webdriver-yesod
+ - sydtest-webdriver-yesod_0_0_1_0
  - sylvia
  - symantic-atom
  - symantic-http-demo
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index bc803f43edec..152220349976 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -752902,8 +752902,6 @@ self: {
       ];
       description = "LZMA/XZ compression and decompression";
       license = lib.licensesSpdx."BSD-3-Clause";
-      hydraPlatforms = lib.platforms.none;
-      broken = true;
     }
   ) { inherit (pkgs) xz; };