diff --git a/public/app-client-internet.nix b/public/app-client-internet.nix
index 90b9211..f098f35 100644
--- a/public/app-client-internet.nix
+++ b/public/app-client-internet.nix
@@ -25,7 +25,7 @@ environment.systemPackages = with pkgs; [
     ## Mail & Discussion (texte, audio)
     clawsMail
     hexchat
-    kde5.quasselClient
+    quasselClient
     mumble
     mutt
     pidgin
diff --git a/public/app-developpement.nix b/public/app-developpement.nix
index 4afe3d5..4fbf463 100644
--- a/public/app-developpement.nix
+++ b/public/app-developpement.nix
@@ -38,7 +38,7 @@ mkIf cfg.developpement {
 
     ## Rust
     cargo               # récupération des dépendances + compilation projet rust
-    rustPlatform.rustc  # pour les appels depuis les scripts
+    rustc               # pour les appels depuis les scripts
 
     ## Visualisation & outils de diff
     gource              # visualisation en mouvement de l'historique git
diff --git a/public/environment.nix b/public/environment.nix
index 916650e..84747e8 100644
--- a/public/environment.nix
+++ b/public/environment.nix
@@ -12,7 +12,7 @@ in
   nix.buildCores = 0;
 
   # The NixOS release to be compatible with for stateful data such as databases.
-  system.stateVersion = "16.03";
+  system.stateVersion = "16.09";
 
   #  copies the NixOS configuration file (usually /etc/nixos/configuration.nix) and links it from the resulting system (getting to /run/current-system/configuration.nix)
   system.copySystemConfiguration = true;