diff --git a/flake.lock b/flake.lock
index 333c751..056d794 100644
--- a/flake.lock
+++ b/flake.lock
@@ -22,22 +22,6 @@
       }
     },
     "flake-compat": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1696426674,
-        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
-    "flake-compat_2": {
       "locked": {
         "lastModified": 1696426674,
         "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
@@ -51,7 +35,7 @@
         "url": "https://flakehub.com/f/edolstra/flake-compat/1.tar.gz"
       }
     },
-    "flake-compat_3": {
+    "flake-compat_2": {
       "flake": false,
       "locked": {
         "lastModified": 1696426674,
@@ -85,27 +69,6 @@
         "type": "github"
       }
     },
-    "flake-parts_2": {
-      "inputs": {
-        "nixpkgs-lib": [
-          "nix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1719994518,
-        "narHash": "sha256-pQMhCCHyQGRzdfAkdJ4cIWiw+JNuWsTX7f0ZYSyz0VY=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "9227223f6d922fee3c7b190b2cc238a99527bbb7",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -208,37 +171,6 @@
         "type": "github"
       }
     },
-    "git-hooks-nix": {
-      "inputs": {
-        "flake-compat": [
-          "nix"
-        ],
-        "gitignore": [
-          "nix"
-        ],
-        "nixpkgs": [
-          "nix",
-          "nixpkgs"
-        ],
-        "nixpkgs-stable": [
-          "nix",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1721042469,
-        "narHash": "sha256-6FPUl7HVtvRHCCBQne7Ylp4p+dpP3P/OYuzjztZ4s70=",
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "rev": "f451c19376071a90d8c58ab1a953c6e9840527fd",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "type": "github"
-      }
-    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
@@ -325,49 +257,6 @@
         "type": "github"
       }
     },
-    "libgit2": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1715853528,
-        "narHash": "sha256-J2rCxTecyLbbDdsyBWn9w7r3pbKRMkI9E7RvRgAqBdY=",
-        "owner": "libgit2",
-        "repo": "libgit2",
-        "rev": "36f7e21ad757a3dacc58cf7944329da6bc1d6e96",
-        "type": "github"
-      },
-      "original": {
-        "owner": "libgit2",
-        "ref": "v1.8.1",
-        "repo": "libgit2",
-        "type": "github"
-      }
-    },
-    "nix": {
-      "inputs": {
-        "flake-compat": "flake-compat",
-        "flake-parts": "flake-parts_2",
-        "git-hooks-nix": "git-hooks-nix",
-        "libgit2": "libgit2",
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "nixpkgs-23-11": "nixpkgs-23-11",
-        "nixpkgs-regression": "nixpkgs-regression"
-      },
-      "locked": {
-        "lastModified": 1727310093,
-        "narHash": "sha256-O0x2Hp3+gb0JJJUXMzO3gBdyzRuFHCxn2DCQ9AMaq/4=",
-        "owner": "nixos",
-        "repo": "nix",
-        "rev": "a5959aa12170fc75cafc9e2416fae9aa67f91e6b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "repo": "nix",
-        "type": "github"
-      }
-    },
     "nix-darwin": {
       "inputs": {
         "nixpkgs": [
@@ -420,22 +309,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-23-11": {
-      "locked": {
-        "lastModified": 1717159533,
-        "narHash": "sha256-oamiKNfr2MS6yH64rUn99mIZjc45nGJlj9eGth/3Xuw=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "a62e6edd6d5e1fa0329b8653c801147986f8d446",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "a62e6edd6d5e1fa0329b8653c801147986f8d446",
-        "type": "github"
-      }
-    },
     "nixpkgs-lib": {
       "locked": {
         "lastModified": 1725233747,
@@ -464,22 +337,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-regression": {
-      "locked": {
-        "lastModified": 1643052045,
-        "narHash": "sha256-uGJ0VXIhWKGXxkeNnq4TvV3CIOkUJ3PAoLZ3HMzNVMw=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
-        "type": "github"
-      }
-    },
     "nixpkgs-stable": {
       "locked": {
         "lastModified": 1727202669,
@@ -531,7 +388,7 @@
     "nixvim": {
       "inputs": {
         "devshell": "devshell",
-        "flake-compat": "flake-compat_2",
+        "flake-compat": "flake-compat",
         "flake-parts": [
           "flake-parts"
         ],
@@ -607,7 +464,7 @@
     },
     "pre-commit-hooks": {
       "inputs": {
-        "flake-compat": "flake-compat_3",
+        "flake-compat": "flake-compat_2",
         "gitignore": "gitignore_2",
         "nixpkgs": [
           "nixpkgs"
@@ -651,7 +508,6 @@
         "flake-parts": "flake-parts",
         "home-manager": "home-manager",
         "iamb": "iamb",
-        "nix": "nix",
         "nix-darwin": "nix-darwin",
         "nix-env": "nix-env",
         "nixpkgs": [
diff --git a/flake.nix b/flake.nix
index 54ff27e..74fed78 100644
--- a/flake.nix
+++ b/flake.nix
@@ -17,9 +17,6 @@
     };
 
   inputs = {
-    nix.url = "github:nixos/nix";
-    nix.inputs.nixpkgs.follows = "nixpkgs";
-
     # utilities for Flake
     flake-parts.url = "github:hercules-ci/flake-parts";
 
diff --git a/nix/default.nix b/nix/default.nix
index a771a28..5d149c5 100644
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -23,7 +23,6 @@
         let
           overlays = [
             inputs.ocaml-overlay.overlays.default
-            inputs.nix.overlays.default
           ] ++ lib.attrValues self.overlays;
         in
         rec {
@@ -34,7 +33,7 @@
               inherit (pkgs) stdenv;
             }
             // {
-              package = pkgs.nix;
+              package = branches.stable.nix;
             };
 
           pkgs = import inputs.nixpkgs {
diff --git a/nix/nix.nix b/nix/nix.nix
index f43b3af..f21452d 100644
--- a/nix/nix.nix
+++ b/nix/nix.nix
@@ -17,7 +17,6 @@ in
     system.flake = inputs.self;
     default.flake = inputs.nixpkgs;
     nixpkgs.flake = inputs.nixpkgs;
-    nix.flake = inputs.nix;
     nix-darwin.flake = inputs.nix-darwin;
     home-manager.flake = inputs.home-manager;
   };