diff --git a/cooked-validators.cabal b/cooked-validators.cabal
index f33e80c57..26982c510 100644
--- a/cooked-validators.cabal
+++ b/cooked-validators.cabal
@@ -1,6 +1,6 @@
 cabal-version: 3.4
 
--- This file has been generated from package.yaml by hpack version 0.35.2.
+-- This file has been generated from package.yaml by hpack version 0.36.0.
 --
 -- see: https://github.com/sol/hpack
 
diff --git a/flake.lock b/flake.lock
index c2bfe703b..b569be6f5 100644
--- a/flake.lock
+++ b/flake.lock
@@ -34,24 +34,6 @@
         "type": "github"
       }
     },
-    "flake-utils_2": {
-      "inputs": {
-        "systems": "systems_2"
-      },
-      "locked": {
-        "lastModified": 1710146030,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
@@ -75,17 +57,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1704161960,
-        "narHash": "sha256-QGua89Pmq+FBAro8NriTuoO/wNaUtugt29/qqA8zeeM=",
+        "lastModified": 1716415580,
+        "narHash": "sha256-ZyvVbEF2jAeO5nf3UjNENtI55OBzT/C5VC+Fjx2kQyY=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "63143ac2c9186be6d9da6035fa22620018c85932",
+        "rev": "04d3e02586729663610bf982dfff433d9a8f6d5e",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "63143ac2c9186be6d9da6035fa22620018c85932",
         "type": "github"
       }
     },
@@ -108,7 +89,6 @@
     "pre-commit-hooks": {
       "inputs": {
         "flake-compat": "flake-compat",
-        "flake-utils": "flake-utils_2",
         "gitignore": "gitignore",
         "nixpkgs": [
           "nixpkgs"
@@ -116,11 +96,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1710923068,
-        "narHash": "sha256-6hOpUiuxuwpXXc/xfJsBUJeqqgGI+JMJuLo45aG3cKc=",
+        "lastModified": 1716213921,
+        "narHash": "sha256-xrsYFST8ij4QWaV6HEokCUNIZLjjLP1bYC60K8XiBVA=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "e611897ddfdde3ed3eaac4758635d7177ff78673",
+        "rev": "0e8fcc54b842ad8428c9e705cb5994eaf05c26a0",
         "type": "github"
       },
       "original": {
@@ -150,21 +130,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "systems_2": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index 130487b42..e51ed504b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,8 +3,7 @@
   ## and HLS 2.6.0.0 do not work together, while nix groups them.
   ## The issue is described here, and a fix is most likely happening soon.
   ## https://github.com/haskell/haskell-language-server/issues/4046
-  inputs.nixpkgs.url =
-    "github:NixOS/nixpkgs/63143ac2c9186be6d9da6035fa22620018c85932";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs";
   inputs.flake-utils.url = "github:numtide/flake-utils";
   inputs.pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
   inputs.pre-commit-hooks.inputs.nixpkgs.follows = "nixpkgs";
@@ -13,7 +12,7 @@
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
-        hpkgs = pkgs.haskell.packages.ghc963;
+        hpkgs = pkgs.haskell.packages.ghc965;
 
         pre-commit = pre-commit-hooks.lib.${system}.run {
           src = ./.;