diff --git a/flake.lock b/flake.lock
index 5808e7b..298ce0c 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,15 +2,18 @@
   "nodes": {
     "devshell": {
       "inputs": {
-        "nixpkgs": "nixpkgs",
-        "systems": "systems"
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "typelevel-nix",
+          "nixpkgs"
+        ]
       },
       "locked": {
-        "lastModified": 1698410321,
-        "narHash": "sha256-MphuSlgpmKwtJncGMohryHiK55J1n6WzVQ/OAfmfoMc=",
+        "lastModified": 1713532798,
+        "narHash": "sha256-wtBhsdMJA3Wa32Wtm1eeo84GejtI43pMrFrmwLXrsEc=",
         "owner": "numtide",
         "repo": "devshell",
-        "rev": "1aed986e3c81a4f6698e85a7452cbfcc4b31a36e",
+        "rev": "12e914740a25ea1891ec619bb53cf5e6ca922e40",
         "type": "github"
       },
       "original": {
@@ -21,14 +24,14 @@
     },
     "flake-utils": {
       "inputs": {
-        "systems": "systems_2"
+        "systems": "systems"
       },
       "locked": {
-        "lastModified": 1694529238,
-        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "lastModified": 1701680307,
+        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
         "type": "github"
       },
       "original": {
@@ -37,29 +40,31 @@
         "type": "github"
       }
     },
-    "nixpkgs": {
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
       "locked": {
-        "lastModified": 1677383253,
-        "narHash": "sha256-UfpzWfSxkfXHnb4boXZNaKsAcUrZT9Hw+tao1oZxd08=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "9952d6bc395f5841262b006fbace8dd7e143b634",
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
-        "repo": "nixpkgs",
+        "owner": "numtide",
+        "repo": "flake-utils",
         "type": "github"
       }
     },
-    "nixpkgs_2": {
+    "nixpkgs": {
       "locked": {
-        "lastModified": 1700416016,
-        "narHash": "sha256-Qp8Of0BUYGjqodmE912h+/uGknB7J11ypcQMKnEDUrg=",
+        "lastModified": 1716220750,
+        "narHash": "sha256-Lhhrd1ZBNXCbUupWGq6gRPIy1qMKEdcAXcjnwgVqe/U=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "0bf3f5cf6a98b5d077cdcdb00a6d4b3d92bc78b5",
+        "rev": "641daa314d5bc1bca4b345da8eb08a130b109c79",
         "type": "github"
       },
       "original": {
@@ -115,15 +120,15 @@
     "typelevel-nix": {
       "inputs": {
         "devshell": "devshell",
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs_2"
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1700513164,
-        "narHash": "sha256-/9j5Cyo73LUUPilA5ml8tx1Q5isHHLwPUckRMtqWsxE=",
+        "lastModified": 1716318436,
+        "narHash": "sha256-CTs+TqpZ0VZX/Z4oh/Jya5/R1MeOmlFIR5PFgkscBKo=",
         "owner": "typelevel",
         "repo": "typelevel-nix",
-        "rev": "66232545cc967ff9d4d5e1805d8dbbc621a3c2e0",
+        "rev": "fd73d42ec47dac8d2f299231efd12c050dc6d3e2",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 0eebca4..3f1d383 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,7 +10,7 @@
       let
         pkgs = import nixpkgs {
           inherit system;
-          overlays = [ typelevel-nix.overlay ];
+          overlays = [ typelevel-nix.overlays.default ];
         };
       in
       {