diff --git a/bert/configuration.nix b/bert/configuration.nix
index 8277e24..4072b87 100644
--- a/bert/configuration.nix
+++ b/bert/configuration.nix
@@ -51,7 +51,6 @@
   };
 
   environment.systemPackages = with pkgs; [
-    git
     rsync
   ];
 
diff --git a/bert/services/factorio.nix b/bert/services/factorio.nix
index b6291ac..0c7f423 100644
--- a/bert/services/factorio.nix
+++ b/bert/services/factorio.nix
@@ -4,7 +4,7 @@
   ];
   services.factorio = {
     enable = true;
-    package = (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/aa2922b69f0245008d93e9edf9f34894db724d89.tar.gz") {
+    package = (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/e47e7cdafffab8b74c2878e02c37696dfcdebca0.tar.gz") {
       config.allowUnfree = true;
     }).factorio-headless;
     openFirewall = true;
diff --git a/oscar/configuration.nix b/oscar/configuration.nix
index 44c472b..451893e 100644
--- a/oscar/configuration.nix
+++ b/oscar/configuration.nix
@@ -106,7 +106,7 @@
   # Define a user account. Don't forget to set a password with ‘passwd’.
   users.users.chandler.isNormalUser = true;
   users.users.chandler.description = "Chandler Swift";
-  users.users.chandler.extraGroups = [ "networkmanager" "wheel" "dialout" "cdrom" "plugdev" "adbusers" "docker" ];
+  users.users.chandler.extraGroups = [ "networkmanager" "wheel" "dialout" "cdrom" "plugdev" "adbusers" ];
   home-manager.backupFileExtension = "backup";
   home-manager.users.chandler = { pkgs, ... }: {
 
@@ -178,7 +178,7 @@
 
       # Unfree:
       discord
-      (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/aa2922b69f0245008d93e9edf9f34894db724d89.tar.gz") {
+      (import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/e47e7cdafffab8b74c2878e02c37696dfcdebca0.tar.gz") {
         config.allowUnfree = true;
       }).factorio-space-age
     ];