diff --git a/flake.nix b/flake.nix
index c25d052..0a733f7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,7 +3,8 @@
 
   inputs = {
     # Nixpkgs
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    # nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    nixpkgs-unstable.url = "github:nixos/nixpkgs/51190abf6296e61da41a11204212c5c893e52462";
 
     nixpkgs-edge.url = "nixpkgs/master"; # Only used for bleeding edge packages