diff --git a/flake.lock b/flake.lock
index dab8d99..c63073c 100644
--- a/flake.lock
+++ b/flake.lock
@@ -75,11 +75,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1665132027,
-        "narHash": "sha256-zoHPqSQSENt96zTk6Mt1AP+dMNqQDshXKQ4I6MfjP80=",
+        "lastModified": 1661187878,
+        "narHash": "sha256-/wCqoQB1BsaVi4nb8Iz0PreeBNMTim0p78NLtyWejFE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9ecc270f02b09b2f6a76b98488554dd842797357",
+        "rev": "52527082ea267fe486f0648582d57c85486b2031",
         "type": "github"
       },
       "original": {
@@ -90,11 +90,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1665259268,
-        "narHash": "sha256-ONFhHBLv5nZKhwV/F2GOH16197PbvpyWhoO0AOyktkU=",
+        "lastModified": 1661239211,
+        "narHash": "sha256-pNJzBlSNpWEiFJZnLF2oETYq8cGWx1DJPW33aMtG6n8=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c5924154f000e6306030300592f4282949b2db6c",
+        "rev": "5e804cd8a27f835a402b22e086e36e797716ef8b",
         "type": "github"
       },
       "original": {
diff --git a/systems/PC-Fixe/configuration.nix b/systems/PC-Fixe/configuration.nix
index eaacc77..4710a83 100644
--- a/systems/PC-Fixe/configuration.nix
+++ b/systems/PC-Fixe/configuration.nix
@@ -12,7 +12,7 @@
       ../common-gui.nix
     ];
 
-  nix.settings.trusted-users = [ "root" "paul" ];
+  nix.trustedUsers = [ "root" "paul" ];
 
   boot.loader.efi.canTouchEfiVariables = true;
   boot.loader.grub = {
diff --git a/systems/PC-Fixe/hardware-configuration.nix b/systems/PC-Fixe/hardware-configuration.nix
index 1547b63..5d50505 100644
--- a/systems/PC-Fixe/hardware-configuration.nix
+++ b/systems/PC-Fixe/hardware-configuration.nix
@@ -50,6 +50,6 @@
 
   swapDevices = [ ];
 
-  nix.settings.max-jobs = lib.mkDefault 12;
+  nix.maxJobs = lib.mkDefault 12;
   powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
 }
diff --git a/systems/common-gui.nix b/systems/common-gui.nix
index 216a765..dd00f94 100644
--- a/systems/common-gui.nix
+++ b/systems/common-gui.nix
@@ -39,7 +39,7 @@
     ark
     kate
     kmail
-    plasma5Packages.kdeconnect-kde
+    kdeconnect
     okular
     yakuake
     konversation