diff --git a/Droidnix/README.org b/Droidnix/README.org
index 19dc758ee..c2817cd20 100644
--- a/Droidnix/README.org
+++ b/Droidnix/README.org
@@ -346,7 +346,7 @@ The Nix flake definition for Droidnix.
 
   inputs = {
 
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
     home-manager = {
       url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";
diff --git a/Droidnix/flake.nix b/Droidnix/flake.nix
index d4e9fbabd..62eb84345 100644
--- a/Droidnix/flake.nix
+++ b/Droidnix/flake.nix
@@ -3,7 +3,7 @@
 
   inputs = {
 
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
     home-manager = {
       url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";