diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index c2bed20..4fdb841 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -23,4 +23,4 @@ jobs:
       - name: Flake check
         id: flake-check 
         run: |
-          nix flake check
+          nix build .#check.x86_64-linux
diff --git a/flake.lock b/flake.lock
index a63a4f1..c1409d6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -54,16 +54,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1648232278,
+        "lastModified": 1648246591,
         "narHash": "sha256-GDyLjj64sA65MPMlOtzs5DHPK4O5O8u6jMYKiGHgaPU=",
-        "ref": "lc/fourmolu",
-        "rev": "822770e9ca42d594a25f5b161f93f21c5d023bbd",
-        "revCount": 19,
+        "ref": "master",
+        "rev": "3a4289e086d48b409c8c6eb51de1d9e405c7f379",
+        "revCount": 20,
         "type": "git",
         "url": "https://gitlab.homotopic.tech/nix/lint-utils.git"
       },
       "original": {
-        "ref": "lc/fourmolu",
+        "ref": "master",
         "type": "git",
         "url": "https://gitlab.homotopic.tech/nix/lint-utils.git"
       }
diff --git a/flake.nix b/flake.nix
index d3e9387..e0cbe76 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,7 +11,7 @@
     lint-utils = {
       type = "git";
       url = "https://gitlab.homotopic.tech/nix/lint-utils.git";
-      ref = "lc/fourmolu";
+      ref = "master";
       inputs.nixpkgs.follows = "nixpkgs";
     }; 
   };
@@ -67,9 +67,9 @@
 
           # Used by `nix flake check`
           checks = {
-            format-haskell = inputs.lint-utils.linters.${system}.${haskellFormatter};
-            format-cabal = inputs.lint-utils.linters.${system}.cabal;
-            format-nix = inputs.lint-utils.linters.${system}.nixpkgs-fmt;
+            format-haskell = inputs.lint-utils.linters.${system}.${haskellFormatter} ./.;
+            format-cabal = inputs.lint-utils.linters.${system}.cabal-fmt ./.;
+            format-nix = inputs.lint-utils.linters.${system}.nixpkgs-fmt ./.;
           };
           check = 
             pkgs.runCommand "combined-checks"