diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 816222eed545..d6bd8bc4302a 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -544,6 +544,10 @@ with haskellLib;
   # https://github.com/essandess/adblock2privoxy/pull/43
   adblock2privoxy = doJailbreak super.adblock2privoxy;
 
+  # 2025-07-15: Relax version constraints (network < 3.2)
+  # Fixed upstream, but unreleased: https://github.com/fumieval/mason/pull/14
+  mason = (warnAfterVersion "0.2.6") (doJailbreak super.mason);
+
   # Missing test file https://gitlab.com/dpwiz/hs-jpeg-turbo/-/issues/1
   jpeg-turbo = dontCheck super.jpeg-turbo;
   JuicyPixels-jpeg-turbo = dontCheck super.JuicyPixels-jpeg-turbo;
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
index 858fdec167ff..eda038782976 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
@@ -3914,7 +3914,6 @@ broken-packages:
   - marshal-contt # failure in job https://hydra.nixos.org/build/233231755 at 2023-09-02
   - marvin-interpolate # failure in job https://hydra.nixos.org/build/233201000 at 2023-09-02
   - MASMGen # failure in job https://hydra.nixos.org/build/233213454 at 2023-09-02
-  - mason # failure in job https://hydra.nixos.org/build/295095242 at 2025-04-22
   - massiv-scheduler # failure in job https://hydra.nixos.org/build/233196778 at 2023-09-02
   - massiv-serialise # failure in job https://hydra.nixos.org/build/233242284 at 2023-09-02
   - master-plan # failure in job https://hydra.nixos.org/build/233208718 at 2023-09-02
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index 7f055e85f69f..258b2c2343f9 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -400804,7 +400804,10 @@ self: {
       description = "Advanced keyboard remapping utility";
       license = lib.licenses.mit;
       mainProgram = "kmonad";
-      maintainers = [ lib.maintainers.slotThe ];
+      maintainers = [
+        lib.maintainers.auscyber
+        lib.maintainers.slotThe
+      ];
     }
   ) { };
 
@@ -437629,8 +437632,6 @@ self: {
       ];
       description = "Fast and extensible bytestring builder";
       license = lib.licenses.bsd3;
-      hydraPlatforms = lib.platforms.none;
-      broken = true;
     }
   ) { };