diff --git a/flake.lock b/flake.lock
index b69a5e7..6d3797e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -36,33 +36,6 @@
         "type": "github"
       }
     },
-    "custom-nixpkgs": {
-      "inputs": {
-        "fenix": [
-          "fenix"
-        ],
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "rust-manifest": "rust-manifest",
-        "systems": [
-          "systems"
-        ]
-      },
-      "locked": {
-        "lastModified": 1698255782,
-        "narHash": "sha256-qSB5Emi37DKTubRsJo+Wov634eh2xLwfJHvkU+GNCOI=",
-        "owner": "msfjarvis",
-        "repo": "custom-nixpkgs",
-        "rev": "f2be310e49af33a056ce60670e84e4b48ba6d32a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "msfjarvis",
-        "repo": "custom-nixpkgs",
-        "type": "github"
-      }
-    },
     "devshell": {
       "inputs": {
         "nixpkgs": [
@@ -163,7 +136,6 @@
       "inputs": {
         "advisory-db": "advisory-db",
         "crane": "crane",
-        "custom-nixpkgs": "custom-nixpkgs",
         "devshell": "devshell",
         "fenix": "fenix",
         "flake-compat": "flake-compat",
@@ -189,18 +161,6 @@
         "type": "github"
       }
     },
-    "rust-manifest": {
-      "flake": false,
-      "locked": {
-        "narHash": "sha256-emILH39kZmz9D2cquaobdM55EakoGkUxn1sY3r1iYNg=",
-        "type": "file",
-        "url": "https://static.rust-lang.org/dist/2023-07-08/channel-rust-nightly.toml"
-      },
-      "original": {
-        "type": "file",
-        "url": "https://static.rust-lang.org/dist/2023-07-08/channel-rust-nightly.toml"
-      }
-    },
     "systems": {
       "locked": {
         "lastModified": 1687694171,
diff --git a/flake.nix b/flake.nix
index e190c24..f5d9dcb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,11 +11,6 @@
   inputs.crane.url = "github:ipetkov/crane";
   inputs.crane.inputs.nixpkgs.follows = "nixpkgs";
 
-  inputs.custom-nixpkgs.url = "github:msfjarvis/custom-nixpkgs";
-  inputs.custom-nixpkgs.inputs.nixpkgs.follows = "nixpkgs";
-  inputs.custom-nixpkgs.inputs.fenix.follows = "fenix";
-  inputs.custom-nixpkgs.inputs.systems.follows = "systems";
-
   inputs.devshell.url = "github:numtide/devshell";
   inputs.devshell.inputs.nixpkgs.follows = "nixpkgs";
   inputs.devshell.inputs.systems.follows = "systems";
@@ -34,7 +29,6 @@
     nixpkgs,
     advisory-db,
     crane,
-    custom-nixpkgs,
     devshell,
     fenix,
     flake-utils,
@@ -43,7 +37,7 @@
     flake-utils.lib.eachDefaultSystem (system: let
       pkgs = import nixpkgs {
         inherit system;
-        overlays = [custom-nixpkgs.overlays.default devshell.overlays.default];
+        overlays = [devshell.overlays.default];
       };
 
       rustNightly = (import fenix {inherit pkgs;}).fromToolchainFile {