diff --git a/flake.nix b/flake.nix
index 339d2c33c..83e1ad742 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,25 +14,7 @@
 
   outputs = { self, mozilla-overlay, sipyco, nac3, artiq-comtools, src-migen, src-misoc }:
     let
-      pkgs = import nac3.inputs.nixpkgs { system = "x86_64-linux"; overlays = [
-        (import mozilla-overlay)
-        (final: prev: {
-          pythonPackagesExtensions = prev.pythonPackagesExtensions ++ [
-            (
-              python-final: python-prev: {
-                pyqt5 = python-prev.pyqt5.overridePythonAttrs (oldAttrs: rec {
-                  version = "5.15.10";
-                  src = python-prev.fetchPypi {
-                    pname = "PyQt5";
-                    inherit version;
-                    hash = "sha256-1Gt4BLGxCk/5F1P4ET5bVYDStEYvMiYoji2ESXM0iYo=";
-                  };
-                });
-              }
-            )
-          ];
-        })
-      ]; };
+      pkgs = import nac3.inputs.nixpkgs { system = "x86_64-linux"; overlays = [ (import mozilla-overlay) ]; };
       pkgs-aarch64 = import nac3.inputs.nixpkgs { system = "aarch64-linux"; };
 
       artiqVersionMajor = 10;