diff --git a/config/hosts/mail-1/configuration.nix b/config/hosts/mail-1/configuration.nix
index b384f41..3f27ce3 100644
--- a/config/hosts/mail-1/configuration.nix
+++ b/config/hosts/mail-1/configuration.nix
@@ -79,15 +79,15 @@
 
   sops.secrets."wireguard-valkyrie-mail-1-mail-1-psk" = {
     mode = "0440";
-    owner = "root";
-    group = "root";
-    restartUnits = [ "wireguard-wg0.service" ];
+    owner = "systemd-network";
+    group = "systemd-network";
+    restartUnits = [ "systemd-networkd.service" ];
   };
   sops.secrets."wireguard-mail-1-wg0-privatekey" = {
     mode = "0440";
-    owner = "root";
-    group = "root";
-    restartUnits = [ "wireguard-wg0.service" ];
+    owner = "systemd-network";
+    group = "systemd-network";
+    restartUnits = [ "systemd-networkd.service" ];
   };
 
   system.stateVersion = "23.05";
diff --git a/flake.lock b/flake.lock
index e0a270b..8751992 100644
--- a/flake.lock
+++ b/flake.lock
@@ -118,11 +118,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1779243744,
-        "narHash": "sha256-hwD5/IbAs5FTdg7R2VPWlVsAwrVDmILa+w8gj4U3HQQ=",
+        "lastModified": 1779516755,
+        "narHash": "sha256-4H8sc3E4lGoLmM5M5EmDoVpfAzMuz75q2/UNQV2h/Yg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "7f04f29e010fdf57851461605322d7c2b95f9f15",
+        "rev": "63ec6699e426863863e065730574a1f336e4925a",
         "type": "github"
       },
       "original": {
@@ -134,11 +134,11 @@
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1779287632,
-        "narHash": "sha256-AMcWQ3mQUrdeXiJaCHXYh+c5tBI3lTsbymEUXPRegdo=",
+        "lastModified": 1779582842,
+        "narHash": "sha256-aJYBdQXSD2gMlD39zP35E5qcPN91f3GWI5+9RHxiHsc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "22dcc7e4821c231607aacd682b035f29fabc2f8f",
+        "rev": "89afca31a77b6850e7335d60e3d35cd742e772cb",
         "type": "github"
       },
       "original": {
@@ -150,11 +150,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1779273561,
-        "narHash": "sha256-O3UFKrh5oDyOwqD4Njdf7+SIxptOl3gHZyesYvNsIbw=",
+        "lastModified": 1779543187,
+        "narHash": "sha256-6SjdsouT54k1+/DyBqTJwdFlja4RBNq9jP9N+8kBIa0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "8e72e9888e67ce593df16546cd31e0d75544ad0d",
+        "rev": "19942a940b16e7e7285e3cf58f09fa1aeb2f90cd",
         "type": "github"
       },
       "original": {