diff --git a/shell.nix b/shell.nix
index a71ba0e..e3ea31b 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,5 +1,5 @@
 let
-  nixpkgs = fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-unstable";
+  nixpkgs = fetchTarball "https://github.com/NixOS/nixpkgs/tarball/nixos-24.11";
   pkgs = import nixpkgs { config = {}; overlays = []; };
 in