diff --git a/flake.lock b/flake.lock
index 2f66a75..71c6241 100644
--- a/flake.lock
+++ b/flake.lock
@@ -17,22 +17,47 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1678875422,
-        "narHash": "sha256-T3o6NcQPwXjxJMn2shz86Chch4ljXgZn746c2caGxd8=",
+        "lastModified": 1679477347,
+        "narHash": "sha256-0Vpbt5q4QG3XHVcUA9ifWxUg1eqcz0fdcQdNdiK4ZrM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "126f49a01de5b7e35a43fd43f891ecf6d3a51459",
+        "rev": "4dc8a5c2dcb80cbdd00b4010d41a75dd26379e86",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "poetry2nix": {
+      "inputs": {
+        "flake-utils": [
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1679445660,
+        "narHash": "sha256-yhO+5d5Ilxybmt3/oGI7KJ/kjnDq50MLrPIvjc40qeg=",
+        "owner": "nix-community",
+        "repo": "poetry2nix",
+        "rev": "50ec694c27a12bc178fff961c4dd927fa6a47f18",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "poetry2nix",
+        "type": "github"
       }
     },
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "poetry2nix": "poetry2nix"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index cd471a2..3f03c92 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,9 +1,13 @@
 {
   inputs = {
     flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:NixOS/nixpkgs";
+    poetry2nix.url = "github:nix-community/poetry2nix";
+    poetry2nix.inputs.nixpkgs.follows = "nixpkgs";
+    poetry2nix.inputs.flake-utils.follows = "flake-utils";
   };
 
-  outputs = { self, nixpkgs, flake-utils, ... }:
+  outputs = { self, nixpkgs, flake-utils, poetry2nix, ... }:
     let
       inherit (builtins) listToAttrs mapAttrs;
 
@@ -25,7 +29,8 @@
       mkApp = drv: flake-utils.lib.mkApp { inherit drv; };
       mkOverlay = name:
         final: prev:
-          final.filterAttrs (n: v: n == name) (mkAllPackages prev);
+          final.filterAttrs (n: v: n == name) (mkAllPackages prev)
+          // { poetry2nix = nixpkgs.packages.${final.system}.poetry2nix; };
     in
     {
       overlays = (listToAttrs
@@ -34,12 +39,15 @@
           allPackageNames
         )
       ) // {
-        all = final: prev: mkAllPackages prev;
+        all = final: prev:
+          mkAllPackages prev
+          // { poetry2nix = nixpkgs.packages.${final.system}.poetry2nix; };
       };
     }
     // flake-utils.lib.eachDefaultSystem (system:
       let
-        pkgs = import nixpkgs { inherit system; };
+        overlays = [ poetry2nix.overlay ];
+        pkgs = import nixpkgs { inherit system overlays; };
         packages = mkAllPackages pkgs;
       in
       {
diff --git a/pkgs/fawltydeps/default.nix b/pkgs/fawltydeps/default.nix
index 95277e8..4864e05 100644
--- a/pkgs/fawltydeps/default.nix
+++ b/pkgs/fawltydeps/default.nix
@@ -6,27 +6,9 @@
 
 let
   poetryOverrides = poetry2nix.defaultPoetryOverrides.extend (full: prev: {
-    colorama = prev.colorama.overridePythonAttrs (old: {
-      buildInputs = old.buildInputs ++ [ prev.hatchling ];
-    });
-    iniconfig = prev.iniconfig.overridePythonAttrs (old: {
-      buildInputs = old.buildInputs ++ [ prev.hatchling prev.hatch-vcs ];
-    });
-    filelock = prev.filelock.overridePythonAttrs (old: {
-      buildInputs = old.buildInputs ++ [ prev.hatchling prev.hatch-vcs ];
-    });
-    packaging = prev.packaging.overridePythonAttrs (old: {
-      buildInputs = old.buildInputs ++ [ prev.flit-core ];
-    });
-    pathspec = prev.pathspec.overridePythonAttrs (old: {
-      buildInputs = old.buildInputs ++ [ prev.flit-core ];
-    });
     nox = prev.nox.overridePythonAttrs (old: {
       buildInputs = old.buildInputs ++ [ prev.setuptools ];
     });
-    exceptiongroup = prev.exceptiongroup.overridePythonAttrs (old: {
-      buildInputs = old.buildInputs ++ [ prev.flit-scm ];
-    });
     pip-requirements-parser = prev.pip-requirements-parser.overridePythonAttrs (old: {
       dontConfigure = true;
     });