diff --git a/flake.nix b/flake.nix
index 84b2a0c..cfb6e7f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,7 +6,6 @@
 
     nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
     nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
-    nixpkgs-master.url = "github:NixOS/nixpkgs/master";
 
     nixos-hardware.url = "github:NixOS/nixos-hardware";
 
diff --git a/nixpkgs.nix b/nixpkgs.nix
index 31751ea..27b4e4e 100644
--- a/nixpkgs.nix
+++ b/nixpkgs.nix
@@ -28,15 +28,5 @@ in {
         allowBroken = false;
       };
     };
-
-    # nixpkgs-master
-    mpkgs = {
-      source = inputs.nixpkgs-master;
-      overlays = [] ++ sharedOverlays;
-      config = {
-        allowUnfree = true;
-        allowBroken = false;
-      };
-    };
   };
 }