diff --git a/flake.lock b/flake.lock
index 7eaea82..e59f258 100644
--- a/flake.lock
+++ b/flake.lock
@@ -22,14 +22,16 @@
       "locked": {
         "lastModified": 1744536153,
         "narHash": "sha256-awS2zRgF4uTwrOKwwiJcByDzDOdo3Q1rPZbiHQg/N38=",
-        "owner": "NixOS",
+        "owner": "nixos",
         "repo": "nixpkgs",
         "rev": "18dd725c29603f582cf1900e0d25f9f1063dbf11",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "root": {
diff --git a/flake.nix b/flake.nix
index b35eac3..6731f03 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "Environnement de développement pour kubernetes pour apprendre";
 
   inputs = {
-    nixpkgs.url = "nixpkgs";
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
@@ -22,6 +22,7 @@
             docker-machine-kvm2 # Required for run on NixOS
             sops
             helm
+            kubeseal
           ];
         };
       };