diff --git a/flake.nix b/flake.nix
index b7227737..67009617 100644
--- a/flake.nix
+++ b/flake.nix
@@ -34,7 +34,7 @@
           pkgsMaster.lib.listToAttrs [
             (mkVersion nixpkgs24_11  "ghc96"  [(import ./nix/overlay-9.6.nix)]  {})
             (mkVersion nixpkgs24_11  "ghc98"  [(import ./nix/overlay-9.8.nix)]  {})
-            (mkVersion nixpkgsMaster "ghc910" [(import ./nix/overlay-9.10.nix)] { enableHlint = false; })
+            (mkVersion nixpkgsMaster "ghc910" [(import ./nix/overlay-9.10.nix)] {})
           ];
 
       # Helper function for building environments with a given set of packages
diff --git a/nix/overlay-9.10.nix b/nix/overlay-9.10.nix
index c5bc5c56..d0a46f70 100644
--- a/nix/overlay-9.10.nix
+++ b/nix/overlay-9.10.nix
@@ -6,6 +6,11 @@ _sel: sup: {
 
           ghc-syntax-highlighter = self.ghc-syntax-highlighter_0_0_12_0;
 
+          hlint = self.callCabal2nix "hlint" (builtins.fetchTarball {
+            url = "https://github.com/ndmitchell/hlint/tarball/7dfba720eaf6fa9bd0b23ae269334559aa722847";
+            sha256 = "06sqja2n9glj8f58hkcpbkjf1h70x22jv74h9pzdlsp459sq28cy";
+          }) {};
+
           code-page = sup.haskell.lib.doJailbreak (sup.haskell.lib.dontCheck super.code-page);
           primitive = sup.haskell.lib.doJailbreak super.primitive;
           call-stack = sup.haskell.lib.dontCheck super.call-stack;