diff --git a/flake.nix b/flake.nix
index 861afd9..a16b87b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -41,6 +41,7 @@
   outputs = {
     self,
     nixpkgs,
+    nixpkgs-stable,
     home-manager,
     sops-nix,
     simple-nixos-mailserver,