diff --git a/hosts/MacBook-Pro-Kirill/configuration.nix b/hosts/MacBook-Pro-Kirill/configuration.nix
index 6a02a71..5616e71 100644
--- a/hosts/MacBook-Pro-Kirill/configuration.nix
+++ b/hosts/MacBook-Pro-Kirill/configuration.nix
@@ -2,7 +2,6 @@
 {
   pkgs,
   inputs,
-  self,
   ...
 }: {
   environment.systemPackages = [
@@ -35,6 +34,7 @@
       "visual-studio-code"
       "ayugram"
       "equinox"
+      "firefox"
     ];
   };
 
@@ -63,7 +63,6 @@
   nix.settings.experimental-features = "nix-command flakes";
   system.primaryUser = "kirill";
 
-  system.configurationRevision = self.rev or self.dirtyRev or null;
   system.stateVersion = 6;
 
   nixpkgs.hostPlatform = "aarch64-darwin";