diff --git a/flake.lock b/flake.lock
index 8dcbc4c..0f36bf1 100644
--- a/flake.lock
+++ b/flake.lock
@@ -70,11 +70,11 @@
         "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1743092657,
-        "narHash": "sha256-ow7/uhFsONGV8y7YwokqRU1SFrkN1op73MvzuE8dynU=",
+        "lastModified": 1743127925,
+        "narHash": "sha256-O+6FDPgubFcCw6FIEIz8I65sOuqhv/d+2XEYkovzeLQ=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "9d534b5749cd539145580f0ad588a912990841dc",
+        "rev": "16b1c42e9567cb7fc145674e169d1d724a221a8d",
         "type": "github"
       },
       "original": {
diff --git a/packages/chained-recurrence.nix b/packages/chained-recurrence.nix
deleted file mode 100644
index c4662e8..0000000
--- a/packages/chained-recurrence.nix
+++ /dev/null
@@ -1,19 +0,0 @@
-{ config, lib, pkgs, ... }:
-let
-  pname = "chained-recurrence";
-  version = "0.0.13";
-in
-pkgs.python312Packages.buildPythonPackage {
-  inherit pname version;
-
-  pyproject = true;
-
-  src = pkgs.fetchPypi {
-    inherit pname version;
-    sha256 = "sha256-PMxZFB82XkvHMCLVvbiW0L8AVQFiYpzXTFpxIUyDqIY=";
-  };
-
-  nativeBuildInputs = [
-    pkgs.python3Packages.setuptools
-  ];
-}
diff --git a/packages/mioctl.nix b/packages/mioctl.nix
index ac7d52f..527364f 100644
--- a/packages/mioctl.nix
+++ b/packages/mioctl.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
   nativeBuildInputs = [ makeWrapper unzip ];
 
   propagatedBuildInputs = [
-    (pkgs.python311.withPackages (pythonPackages: with pythonPackages; [
+    (pkgs.python3.withPackages (pythonPackages: with pythonPackages; [
       mido
       python-rtmidi
     ]))