diff --git a/flake.nix b/flake.nix
index 36bfd37..07f9337 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "Gortium infra flake";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+    nixpkgs.url = "github:nixos/nixpkgs?ref=25.11";
     agenix = {
       url = "github:ryantm/agenix";
       inputs.darwin.follows = "";